Home / 292,475.30-438,421.35-134,428.10

Finding the Fourth Proportional to 292,475.30, 438,421.35 and 134,428.10

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Solution

The fourth proportional to 292,475.30, 438,421.35 and 134,428.10 is: 201,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,475.30 : 438,421.35 = 134,428.10 : x
  2. Step 2: Convert to fraction form
    292,475.30/438,421.35 = 134,428.10/x
  3. Step 3: Cross multiply
    292,475.30x = 438,421.35 × 134,428.10
  4. Step 4: Simplify right side
    292,475.30x = 58,936,149,079.94
  5. Step 5: Solve for x
    x = 58,936,149,079.94/292,475.30
  6. Step 6: Final answer
    x = 201,508.12

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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.