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Finding the Fourth Proportional to 510,229.90, 765,455.55 and 155,234.69

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Solution

The fourth proportional to 510,229.90, 765,455.55 and 155,234.69 is: 232,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,229.90 : 765,455.55 = 155,234.69 : x
  2. Step 2: Convert to fraction form
    510,229.90/765,455.55 = 155,234.69/x
  3. Step 3: Cross multiply
    510,229.90x = 765,455.55 × 155,234.69
  4. Step 4: Simplify right side
    510,229.90x = 118,825,255,013.03
  5. Step 5: Solve for x
    x = 118,825,255,013.03/510,229.90
  6. Step 6: Final answer
    x = 232,885.71

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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.