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Finding the Fourth Proportional to 334,900.36, 502,349.82 and 85,581.64

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Solution

The fourth proportional to 334,900.36, 502,349.82 and 85,581.64 is: 128,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,900.36 : 502,349.82 = 85,581.64 : x
  2. Step 2: Convert to fraction form
    334,900.36/502,349.82 = 85,581.64/x
  3. Step 3: Cross multiply
    334,900.36x = 502,349.82 × 85,581.64
  4. Step 4: Simplify right side
    334,900.36x = 42,991,921,449.30
  5. Step 5: Solve for x
    x = 42,991,921,449.30/334,900.36
  6. Step 6: Final answer
    x = 128,372.28

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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.