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Finding the Fourth Proportional to 388,992.20, 583,750.73 and 152,305.34

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Solution

The fourth proportional to 388,992.20, 583,750.73 and 152,305.34 is: 228,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,992.20 : 583,750.73 = 152,305.34 : x
  2. Step 2: Convert to fraction form
    388,992.20/583,750.73 = 152,305.34/x
  3. Step 3: Cross multiply
    388,992.20x = 583,750.73 × 152,305.34
  4. Step 4: Simplify right side
    388,992.20x = 88,908,350,869.91
  5. Step 5: Solve for x
    x = 88,908,350,869.91/388,992.20
  6. Step 6: Final answer
    x = 228,560.76

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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.