Home / 388,043.20-581,364.30-163,000.90

Finding the Fourth Proportional to 388,043.20, 581,364.30 and 163,000.90

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Solution

The fourth proportional to 388,043.20, 581,364.30 and 163,000.90 is: 244,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,043.20 : 581,364.30 = 163,000.90 : x
  2. Step 2: Convert to fraction form
    388,043.20/581,364.30 = 163,000.90/x
  3. Step 3: Cross multiply
    388,043.20x = 581,364.30 × 163,000.90
  4. Step 4: Simplify right side
    388,043.20x = 94,762,904,127.87
  5. Step 5: Solve for x
    x = 94,762,904,127.87/388,043.20
  6. Step 6: Final answer
    x = 244,207.10

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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.