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Finding the Fourth Proportional to 360,985.71, 498,003.87 and 217,666.14

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Solution

The fourth proportional to 360,985.71, 498,003.87 and 217,666.14 is: 300,284.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,985.71 : 498,003.87 = 217,666.14 : x
  2. Step 2: Convert to fraction form
    360,985.71/498,003.87 = 217,666.14/x
  3. Step 3: Cross multiply
    360,985.71x = 498,003.87 × 217,666.14
  4. Step 4: Simplify right side
    360,985.71x = 108,398,580,087.96
  5. Step 5: Solve for x
    x = 108,398,580,087.96/360,985.71
  6. Step 6: Final answer
    x = 300,284.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.