Home / 287,122.17-430,209.33-166,841.47

Finding the Fourth Proportional to 287,122.17, 430,209.33 and 166,841.47

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Solution

The fourth proportional to 287,122.17, 430,209.33 and 166,841.47 is: 249,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,122.17 : 430,209.33 = 166,841.47 : x
  2. Step 2: Convert to fraction form
    287,122.17/430,209.33 = 166,841.47/x
  3. Step 3: Cross multiply
    287,122.17x = 430,209.33 × 166,841.47
  4. Step 4: Simplify right side
    287,122.17x = 71,776,757,024.92
  5. Step 5: Solve for x
    x = 71,776,757,024.92/287,122.17
  6. Step 6: Final answer
    x = 249,986.82

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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.