Home / 292,318.85-438,506.15-81,956.18

Finding the Fourth Proportional to 292,318.85, 438,506.15 and 81,956.18

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Solution

The fourth proportional to 292,318.85, 438,506.15 and 81,956.18 is: 122,942.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,318.85 : 438,506.15 = 81,956.18 : x
  2. Step 2: Convert to fraction form
    292,318.85/438,506.15 = 81,956.18/x
  3. Step 3: Cross multiply
    292,318.85x = 438,506.15 × 81,956.18
  4. Step 4: Simplify right side
    292,318.85x = 35,938,286,358.20
  5. Step 5: Solve for x
    x = 35,938,286,358.20/292,318.85
  6. Step 6: Final answer
    x = 122,942.08

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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.