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Finding the Fourth Proportional to 356,287.47, 491,681.96 and 195,157.47

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Solution

The fourth proportional to 356,287.47, 491,681.96 and 195,157.47 is: 269,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,287.47 : 491,681.96 = 195,157.47 : x
  2. Step 2: Convert to fraction form
    356,287.47/491,681.96 = 195,157.47/x
  3. Step 3: Cross multiply
    356,287.47x = 491,681.96 × 195,157.47
  4. Step 4: Simplify right side
    356,287.47x = 95,955,406,382.45
  5. Step 5: Solve for x
    x = 95,955,406,382.45/356,287.47
  6. Step 6: Final answer
    x = 269,320.18

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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.