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Finding the Fourth Proportional to 556,003.20, 833,688.76 and 218,861.08

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Solution

The fourth proportional to 556,003.20, 833,688.76 and 218,861.08 is: 328,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,003.20 : 833,688.76 = 218,861.08 : x
  2. Step 2: Convert to fraction form
    556,003.20/833,688.76 = 218,861.08/x
  3. Step 3: Cross multiply
    556,003.20x = 833,688.76 × 218,861.08
  4. Step 4: Simplify right side
    556,003.20x = 182,462,022,397.46
  5. Step 5: Solve for x
    x = 182,462,022,397.46/556,003.20
  6. Step 6: Final answer
    x = 328,167.22

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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.