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Finding the Fourth Proportional to 228,494.13, 315,322.11 and 127,892.13

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Solution

The fourth proportional to 228,494.13, 315,322.11 and 127,892.13 is: 176,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,494.13 : 315,322.11 = 127,892.13 : x
  2. Step 2: Convert to fraction form
    228,494.13/315,322.11 = 127,892.13/x
  3. Step 3: Cross multiply
    228,494.13x = 315,322.11 × 127,892.13
  4. Step 4: Simplify right side
    228,494.13x = 40,327,216,283.99
  5. Step 5: Solve for x
    x = 40,327,216,283.99/228,494.13
  6. Step 6: Final answer
    x = 176,491.26

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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.