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Finding the Fourth Proportional to 425,737.89, 637,790.36 and 238,880.61

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Solution

The fourth proportional to 425,737.89, 637,790.36 and 238,880.61 is: 357,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,737.89 : 637,790.36 = 238,880.61 : x
  2. Step 2: Convert to fraction form
    425,737.89/637,790.36 = 238,880.61/x
  3. Step 3: Cross multiply
    425,737.89x = 637,790.36 × 238,880.61
  4. Step 4: Simplify right side
    425,737.89x = 152,355,749,054.52
  5. Step 5: Solve for x
    x = 152,355,749,054.52/425,737.89
  6. Step 6: Final answer
    x = 357,862.79

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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.