Home / 292,528.90-438,875.97-82,168.66

Finding the Fourth Proportional to 292,528.90, 438,875.97 and 82,168.66

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Solution

The fourth proportional to 292,528.90, 438,875.97 and 82,168.66 is: 123,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,528.90 : 438,875.97 = 82,168.66 : x
  2. Step 2: Convert to fraction form
    292,528.90/438,875.97 = 82,168.66/x
  3. Step 3: Cross multiply
    292,528.90x = 438,875.97 × 82,168.66
  4. Step 4: Simplify right side
    292,528.90x = 36,061,850,361.10
  5. Step 5: Solve for x
    x = 36,061,850,361.10/292,528.90
  6. Step 6: Final answer
    x = 123,276.20

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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.