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Finding the Fourth Proportional to 425,119.79, 637,458.23 and 158,661.17

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Solution

The fourth proportional to 425,119.79, 637,458.23 and 158,661.17 is: 237,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,119.79 : 637,458.23 = 158,661.17 : x
  2. Step 2: Convert to fraction form
    425,119.79/637,458.23 = 158,661.17/x
  3. Step 3: Cross multiply
    425,119.79x = 637,458.23 × 158,661.17
  4. Step 4: Simplify right side
    425,119.79x = 101,139,864,617.33
  5. Step 5: Solve for x
    x = 101,139,864,617.33/425,119.79
  6. Step 6: Final answer
    x = 237,909.10

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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.