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Finding the Fourth Proportional to 342,680, 473,147.84 and 275,068.88

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Solution

The fourth proportional to 342,680, 473,147.84 and 275,068.88 is: 379,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,680 : 473,147.84 = 275,068.88 : x
  2. Step 2: Convert to fraction form
    342,680/473,147.84 = 275,068.88/x
  3. Step 3: Cross multiply
    342,680x = 473,147.84 × 275,068.88
  4. Step 4: Simplify right side
    342,680x = 130,148,246,423.22
  5. Step 5: Solve for x
    x = 130,148,246,423.22/342,680
  6. Step 6: Final answer
    x = 379,795.28

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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.