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Finding the Fourth Proportional to 335,097.32, 502,645.66 and 85,778.92

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Solution

The fourth proportional to 335,097.32, 502,645.66 and 85,778.92 is: 128,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,097.32 : 502,645.66 = 85,778.92 : x
  2. Step 2: Convert to fraction form
    335,097.32/502,645.66 = 85,778.92/x
  3. Step 3: Cross multiply
    335,097.32x = 502,645.66 × 85,778.92
  4. Step 4: Simplify right side
    335,097.32x = 43,116,401,857.49
  5. Step 5: Solve for x
    x = 43,116,401,857.49/335,097.32
  6. Step 6: Final answer
    x = 128,668.30

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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.