Home / 219,109.28-328,799.98-140,280.08

Finding the Fourth Proportional to 219,109.28, 328,799.98 and 140,280.08

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Solution

The fourth proportional to 219,109.28, 328,799.98 and 140,280.08 is: 210,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,109.28 : 328,799.98 = 140,280.08 : x
  2. Step 2: Convert to fraction form
    219,109.28/328,799.98 = 140,280.08/x
  3. Step 3: Cross multiply
    219,109.28x = 328,799.98 × 140,280.08
  4. Step 4: Simplify right side
    219,109.28x = 46,124,087,498.40
  5. Step 5: Solve for x
    x = 46,124,087,498.40/219,109.28
  6. Step 6: Final answer
    x = 210,507.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.