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Finding the Fourth Proportional to 245,304.84, 338,490.36 and 141,956.76

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Solution

The fourth proportional to 245,304.84, 338,490.36 and 141,956.76 is: 195,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,304.84 : 338,490.36 = 141,956.76 : x
  2. Step 2: Convert to fraction form
    245,304.84/338,490.36 = 141,956.76/x
  3. Step 3: Cross multiply
    245,304.84x = 338,490.36 × 141,956.76
  4. Step 4: Simplify right side
    245,304.84x = 48,050,994,796.83
  5. Step 5: Solve for x
    x = 48,050,994,796.83/245,304.84
  6. Step 6: Final answer
    x = 195,882.78

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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.