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Finding the Fourth Proportional to 388,801.88, 583,236.23 and 108,319.13

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Solution

The fourth proportional to 388,801.88, 583,236.23 and 108,319.13 is: 162,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,801.88 : 583,236.23 = 108,319.13 : x
  2. Step 2: Convert to fraction form
    388,801.88/583,236.23 = 108,319.13/x
  3. Step 3: Cross multiply
    388,801.88x = 583,236.23 × 108,319.13
  4. Step 4: Simplify right side
    388,801.88x = 63,175,637,560.30
  5. Step 5: Solve for x
    x = 63,175,637,560.30/388,801.88
  6. Step 6: Final answer
    x = 162,488.00

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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.