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Finding the Fourth Proportional to 284,430.90, 426,531.15 and 97,346.10

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Solution

The fourth proportional to 284,430.90, 426,531.15 and 97,346.10 is: 145,979.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,430.90 : 426,531.15 = 97,346.10 : x
  2. Step 2: Convert to fraction form
    284,430.90/426,531.15 = 97,346.10/x
  3. Step 3: Cross multiply
    284,430.90x = 426,531.15 × 97,346.10
  4. Step 4: Simplify right side
    284,430.90x = 41,521,143,981.02
  5. Step 5: Solve for x
    x = 41,521,143,981.02/284,430.90
  6. Step 6: Final answer
    x = 145,979.72

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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.