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Finding the Fourth Proportional to 216,398.92, 298,641.88 and 130,384.92

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Solution

The fourth proportional to 216,398.92, 298,641.88 and 130,384.92 is: 179,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,398.92 : 298,641.88 = 130,384.92 : x
  2. Step 2: Convert to fraction form
    216,398.92/298,641.88 = 130,384.92/x
  3. Step 3: Cross multiply
    216,398.92x = 298,641.88 × 130,384.92
  4. Step 4: Simplify right side
    216,398.92x = 38,938,397,632.45
  5. Step 5: Solve for x
    x = 38,938,397,632.45/216,398.92
  6. Step 6: Final answer
    x = 179,938.04

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1.5x scale

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.