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Finding the Fourth Proportional to 388,879.43, 583,952.00 and 240,065.69

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Solution

The fourth proportional to 388,879.43, 583,952.00 and 240,065.69 is: 360,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,879.43 : 583,952.00 = 240,065.69 : x
  2. Step 2: Convert to fraction form
    388,879.43/583,952.00 = 240,065.69/x
  3. Step 3: Cross multiply
    388,879.43x = 583,952.00 × 240,065.69
  4. Step 4: Simplify right side
    388,879.43x = 140,186,838,606.55
  5. Step 5: Solve for x
    x = 140,186,838,606.55/388,879.43
  6. Step 6: Final answer
    x = 360,489.21

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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.