Home / 284,583.18-392,724.92-157,258.78

Finding the Fourth Proportional to 284,583.18, 392,724.92 and 157,258.78

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Solution

The fourth proportional to 284,583.18, 392,724.92 and 157,258.78 is: 217,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,583.18 : 392,724.92 = 157,258.78 : x
  2. Step 2: Convert to fraction form
    284,583.18/392,724.92 = 157,258.78/x
  3. Step 3: Cross multiply
    284,583.18x = 392,724.92 × 157,258.78
  4. Step 4: Simplify right side
    284,583.18x = 61,759,441,794.80
  5. Step 5: Solve for x
    x = 61,759,441,794.80/284,583.18
  6. Step 6: Final answer
    x = 217,017.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.