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Finding the Fourth Proportional to 266,278.89, 399,616.71 and 195,384.72

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Solution

The fourth proportional to 266,278.89, 399,616.71 and 195,384.72 is: 293,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,278.89 : 399,616.71 = 195,384.72 : x
  2. Step 2: Convert to fraction form
    266,278.89/399,616.71 = 195,384.72/x
  3. Step 3: Cross multiply
    266,278.89x = 399,616.71 × 195,384.72
  4. Step 4: Simplify right side
    266,278.89x = 78,078,998,990.67
  5. Step 5: Solve for x
    x = 78,078,998,990.67/266,278.89
  6. Step 6: Final answer
    x = 293,222.64

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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.