Home / 223,506.38-308,439.18-121,531.76

Finding the Fourth Proportional to 223,506.38, 308,439.18 and 121,531.76

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Solution

The fourth proportional to 223,506.38, 308,439.18 and 121,531.76 is: 167,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,506.38 : 308,439.18 = 121,531.76 : x
  2. Step 2: Convert to fraction form
    223,506.38/308,439.18 = 121,531.76/x
  3. Step 3: Cross multiply
    223,506.38x = 308,439.18 × 121,531.76
  4. Step 4: Simplify right side
    223,506.38x = 37,485,156,398.36
  5. Step 5: Solve for x
    x = 37,485,156,398.36/223,506.38
  6. Step 6: Final answer
    x = 167,714.03

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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.