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Finding the Fourth Proportional to 277,304.39, 415,956.59 and 90,315.89

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Solution

The fourth proportional to 277,304.39, 415,956.59 and 90,315.89 is: 135,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,304.39 : 415,956.59 = 90,315.89 : x
  2. Step 2: Convert to fraction form
    277,304.39/415,956.59 = 90,315.89/x
  3. Step 3: Cross multiply
    277,304.39x = 415,956.59 × 90,315.89
  4. Step 4: Simplify right side
    277,304.39x = 37,567,490,892.90
  5. Step 5: Solve for x
    x = 37,567,490,892.90/277,304.39
  6. Step 6: Final answer
    x = 135,473.84

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Similar ratio
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1.5x scale

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.