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Finding the Fourth Proportional to 285,482.84, 428,084.13 and 141,221.98

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Solution

The fourth proportional to 285,482.84, 428,084.13 and 141,221.98 is: 211,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,482.84 : 428,084.13 = 141,221.98 : x
  2. Step 2: Convert to fraction form
    285,482.84/428,084.13 = 141,221.98/x
  3. Step 3: Cross multiply
    285,482.84x = 428,084.13 × 141,221.98
  4. Step 4: Simplify right side
    285,482.84x = 60,454,886,845.38
  5. Step 5: Solve for x
    x = 60,454,886,845.38/285,482.84
  6. Step 6: Final answer
    x = 211,763.65

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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.