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Finding the Fourth Proportional to 510,775.20, 766,243.80 and 155,707.92

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Solution

The fourth proportional to 510,775.20, 766,243.80 and 155,707.92 is: 233,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,775.20 : 766,243.80 = 155,707.92 : x
  2. Step 2: Convert to fraction form
    510,775.20/766,243.80 = 155,707.92/x
  3. Step 3: Cross multiply
    510,775.20x = 766,243.80 × 155,707.92
  4. Step 4: Simplify right side
    510,775.20x = 119,310,228,310.90
  5. Step 5: Solve for x
    x = 119,310,228,310.90/510,775.20
  6. Step 6: Final answer
    x = 233,586.57

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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.