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Finding the Fourth Proportional to 524,851.85, 787,402.71 and 169,865.87

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Solution

The fourth proportional to 524,851.85, 787,402.71 and 169,865.87 is: 254,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,851.85 : 787,402.71 = 169,865.87 : x
  2. Step 2: Convert to fraction form
    524,851.85/787,402.71 = 169,865.87/x
  3. Step 3: Cross multiply
    524,851.85x = 787,402.71 × 169,865.87
  4. Step 4: Simplify right side
    524,851.85x = 133,752,845,525.18
  5. Step 5: Solve for x
    x = 133,752,845,525.18/524,851.85
  6. Step 6: Final answer
    x = 254,839.24

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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.