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Finding the Fourth Proportional to 225,349.40, 310,985.84 and 123,373.15

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Solution

The fourth proportional to 225,349.40, 310,985.84 and 123,373.15 is: 170,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,349.40 : 310,985.84 = 123,373.15 : x
  2. Step 2: Convert to fraction form
    225,349.40/310,985.84 = 123,373.15/x
  3. Step 3: Cross multiply
    225,349.40x = 310,985.84 × 123,373.15
  4. Step 4: Simplify right side
    225,349.40x = 38,367,302,217.16
  5. Step 5: Solve for x
    x = 38,367,302,217.16/225,349.40
  6. Step 6: Final answer
    x = 170,256.96

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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.