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Finding the Fourth Proportional to 342,177.40, 512,682.90 and 292,022.20

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Solution

The fourth proportional to 342,177.40, 512,682.90 and 292,022.20 is: 437,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,177.40 : 512,682.90 = 292,022.20 : x
  2. Step 2: Convert to fraction form
    342,177.40/512,682.90 = 292,022.20/x
  3. Step 3: Cross multiply
    342,177.40x = 512,682.90 × 292,022.20
  4. Step 4: Simplify right side
    342,177.40x = 149,714,788,360.38
  5. Step 5: Solve for x
    x = 149,714,788,360.38/342,177.40
  6. Step 6: Final answer
    x = 437,535.58

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1.5x scale

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.