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Finding the Fourth Proportional to 425,386.50, 587,045.73 and 234,412.20

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Solution

The fourth proportional to 425,386.50, 587,045.73 and 234,412.20 is: 323,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,386.50 : 587,045.73 = 234,412.20 : x
  2. Step 2: Convert to fraction form
    425,386.50/587,045.73 = 234,412.20/x
  3. Step 3: Cross multiply
    425,386.50x = 587,045.73 × 234,412.20
  4. Step 4: Simplify right side
    425,386.50x = 137,610,681,069.91
  5. Step 5: Solve for x
    x = 137,610,681,069.91/425,386.50
  6. Step 6: Final answer
    x = 323,495.65

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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.