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Finding the Fourth Proportional to 356,281.61, 491,668.79 and 195,146.89

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Solution

The fourth proportional to 356,281.61, 491,668.79 and 195,146.89 is: 269,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,281.61 : 491,668.79 = 195,146.89 : x
  2. Step 2: Convert to fraction form
    356,281.61/491,668.79 = 195,146.89/x
  3. Step 3: Cross multiply
    356,281.61x = 491,668.79 × 195,146.89
  4. Step 4: Simplify right side
    356,281.61x = 95,947,633,073.66
  5. Step 5: Solve for x
    x = 95,947,633,073.66/356,281.61
  6. Step 6: Final answer
    x = 269,302.80

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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.