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Finding the Fourth Proportional to 353,625.29, 488,013.47 and 217,737.65

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Solution

The fourth proportional to 353,625.29, 488,013.47 and 217,737.65 is: 300,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,625.29 : 488,013.47 = 217,737.65 : x
  2. Step 2: Convert to fraction form
    353,625.29/488,013.47 = 217,737.65/x
  3. Step 3: Cross multiply
    353,625.29x = 488,013.47 × 217,737.65
  4. Step 4: Simplify right side
    353,625.29x = 106,258,902,597.39
  5. Step 5: Solve for x
    x = 106,258,902,597.39/353,625.29
  6. Step 6: Final answer
    x = 300,484.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.