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Finding the Fourth Proportional to 275,565.62, 380,302.53 and 154,714.84

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Solution

The fourth proportional to 275,565.62, 380,302.53 and 154,714.84 is: 213,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,565.62 : 380,302.53 = 154,714.84 : x
  2. Step 2: Convert to fraction form
    275,565.62/380,302.53 = 154,714.84/x
  3. Step 3: Cross multiply
    275,565.62x = 380,302.53 × 154,714.84
  4. Step 4: Simplify right side
    275,565.62x = 58,838,443,549.61
  5. Step 5: Solve for x
    x = 58,838,443,549.61/275,565.62
  6. Step 6: Final answer
    x = 213,518.81

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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.