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Finding the Fourth Proportional to 379,445, 523,641.60 and 207,373.62

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Solution

The fourth proportional to 379,445, 523,641.60 and 207,373.62 is: 286,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,445 : 523,641.60 = 207,373.62 : x
  2. Step 2: Convert to fraction form
    379,445/523,641.60 = 207,373.62/x
  3. Step 3: Cross multiply
    379,445x = 523,641.60 × 207,373.62
  4. Step 4: Simplify right side
    379,445x = 108,589,454,174.59
  5. Step 5: Solve for x
    x = 108,589,454,174.59/379,445
  6. Step 6: Final answer
    x = 286,179.69

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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.