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Finding the Fourth Proportional to 425,117.56, 637,454.89 and 158,658.94

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Solution

The fourth proportional to 425,117.56, 637,454.89 and 158,658.94 is: 237,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,117.56 : 637,454.89 = 158,658.94 : x
  2. Step 2: Convert to fraction form
    425,117.56/637,454.89 = 158,658.94/x
  3. Step 3: Cross multiply
    425,117.56x = 637,454.89 × 158,658.94
  4. Step 4: Simplify right side
    425,117.56x = 101,137,917,145.22
  5. Step 5: Solve for x
    x = 101,137,917,145.22/425,117.56
  6. Step 6: Final answer
    x = 237,905.76

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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.