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Finding the Fourth Proportional to 388,967.50, 583,549.71 and 108,484.75

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Solution

The fourth proportional to 388,967.50, 583,549.71 and 108,484.75 is: 162,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,967.50 : 583,549.71 = 108,484.75 : x
  2. Step 2: Convert to fraction form
    388,967.50/583,549.71 = 108,484.75/x
  3. Step 3: Cross multiply
    388,967.50x = 583,549.71 × 108,484.75
  4. Step 4: Simplify right side
    388,967.50x = 63,306,244,401.92
  5. Step 5: Solve for x
    x = 63,306,244,401.92/388,967.50
  6. Step 6: Final answer
    x = 162,754.59

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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.