Home / 423,210.52-583,987.98-253,440.28

Finding the Fourth Proportional to 423,210.52, 583,987.98 and 253,440.28

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Solution

The fourth proportional to 423,210.52, 583,987.98 and 253,440.28 is: 349,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,210.52 : 583,987.98 = 253,440.28 : x
  2. Step 2: Convert to fraction form
    423,210.52/583,987.98 = 253,440.28/x
  3. Step 3: Cross multiply
    423,210.52x = 583,987.98 × 253,440.28
  4. Step 4: Simplify right side
    423,210.52x = 148,006,077,167.83
  5. Step 5: Solve for x
    x = 148,006,077,167.83/423,210.52
  6. Step 6: Final answer
    x = 349,722.11

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.