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Finding the Fourth Proportional to 288,384.56, 432,577.84 and 88,703.60

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Solution

The fourth proportional to 288,384.56, 432,577.84 and 88,703.60 is: 133,055.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,384.56 : 432,577.84 = 88,703.60 : x
  2. Step 2: Convert to fraction form
    288,384.56/432,577.84 = 88,703.60/x
  3. Step 3: Cross multiply
    288,384.56x = 432,577.84 × 88,703.60
  4. Step 4: Simplify right side
    288,384.56x = 38,371,211,688.22
  5. Step 5: Solve for x
    x = 38,371,211,688.22/288,384.56
  6. Step 6: Final answer
    x = 133,055.71

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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.