Home / 658,254.78-987,382.20-159,618.78

Finding the Fourth Proportional to 658,254.78, 987,382.20 and 159,618.78

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Solution

The fourth proportional to 658,254.78, 987,382.20 and 159,618.78 is: 239,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,254.78 : 987,382.20 = 159,618.78 : x
  2. Step 2: Convert to fraction form
    658,254.78/987,382.20 = 159,618.78/x
  3. Step 3: Cross multiply
    658,254.78x = 987,382.20 × 159,618.78
  4. Step 4: Simplify right side
    658,254.78x = 157,604,742,157.72
  5. Step 5: Solve for x
    x = 157,604,742,157.72/658,254.78
  6. Step 6: Final answer
    x = 239,428.18

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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.