Home / 253,470.57-349,784.10-138,746.40

Finding the Fourth Proportional to 253,470.57, 349,784.10 and 138,746.40

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Solution

The fourth proportional to 253,470.57, 349,784.10 and 138,746.40 is: 191,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,470.57 : 349,784.10 = 138,746.40 : x
  2. Step 2: Convert to fraction form
    253,470.57/349,784.10 = 138,746.40/x
  3. Step 3: Cross multiply
    253,470.57x = 349,784.10 × 138,746.40
  4. Step 4: Simplify right side
    253,470.57x = 48,531,284,652.24
  5. Step 5: Solve for x
    x = 48,531,284,652.24/253,470.57
  6. Step 6: Final answer
    x = 191,467.14

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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.