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Finding the Fourth Proportional to 274,444.28, 411,666.42 and 77,452.28

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Solution

The fourth proportional to 274,444.28, 411,666.42 and 77,452.28 is: 116,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,444.28 : 411,666.42 = 77,452.28 : x
  2. Step 2: Convert to fraction form
    274,444.28/411,666.42 = 77,452.28/x
  3. Step 3: Cross multiply
    274,444.28x = 411,666.42 × 77,452.28
  4. Step 4: Simplify right side
    274,444.28x = 31,884,502,828.44
  5. Step 5: Solve for x
    x = 31,884,502,828.44/274,444.28
  6. Step 6: Final answer
    x = 116,178.42

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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.