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Finding the Fourth Proportional to 334,743.32, 502,114.56 and 85,425.32

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Solution

The fourth proportional to 334,743.32, 502,114.56 and 85,425.32 is: 128,137.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,743.32 : 502,114.56 = 85,425.32 : x
  2. Step 2: Convert to fraction form
    334,743.32/502,114.56 = 85,425.32/x
  3. Step 3: Cross multiply
    334,743.32x = 502,114.56 × 85,425.32
  4. Step 4: Simplify right side
    334,743.32x = 42,893,296,964.66
  5. Step 5: Solve for x
    x = 42,893,296,964.66/334,743.32
  6. Step 6: Final answer
    x = 128,137.87

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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.