Home / 284,312.26-425,542.51-209,402.90

Finding the Fourth Proportional to 284,312.26, 425,542.51 and 209,402.90

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Solution

The fourth proportional to 284,312.26, 425,542.51 and 209,402.90 is: 313,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,312.26 : 425,542.51 = 209,402.90 : x
  2. Step 2: Convert to fraction form
    284,312.26/425,542.51 = 209,402.90/x
  3. Step 3: Cross multiply
    284,312.26x = 425,542.51 × 209,402.90
  4. Step 4: Simplify right side
    284,312.26x = 89,109,835,667.28
  5. Step 5: Solve for x
    x = 89,109,835,667.28/284,312.26
  6. Step 6: Final answer
    x = 313,422.42

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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.