Home / 223,475.57-308,402.33-121,507.91

Finding the Fourth Proportional to 223,475.57, 308,402.33 and 121,507.91

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Solution

The fourth proportional to 223,475.57, 308,402.33 and 121,507.91 is: 167,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,475.57 : 308,402.33 = 121,507.91 : x
  2. Step 2: Convert to fraction form
    223,475.57/308,402.33 = 121,507.91/x
  3. Step 3: Cross multiply
    223,475.57x = 308,402.33 × 121,507.91
  4. Step 4: Simplify right side
    223,475.57x = 37,473,320,407.88
  5. Step 5: Solve for x
    x = 37,473,320,407.88/223,475.57
  6. Step 6: Final answer
    x = 167,684.20

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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.