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Finding the Fourth Proportional to 425,350.80, 637,663.80 and 188,564.40

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Solution

The fourth proportional to 425,350.80, 637,663.80 and 188,564.40 is: 282,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,350.80 : 637,663.80 = 188,564.40 : x
  2. Step 2: Convert to fraction form
    425,350.80/637,663.80 = 188,564.40/x
  3. Step 3: Cross multiply
    425,350.80x = 637,663.80 × 188,564.40
  4. Step 4: Simplify right side
    425,350.80x = 120,240,691,848.72
  5. Step 5: Solve for x
    x = 120,240,691,848.72/425,350.80
  6. Step 6: Final answer
    x = 282,685.94

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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.