Home / 229,749.28-316,832.88-149,146.72

Finding the Fourth Proportional to 229,749.28, 316,832.88 and 149,146.72

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Solution

The fourth proportional to 229,749.28, 316,832.88 and 149,146.72 is: 205,678.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,749.28 : 316,832.88 = 149,146.72 : x
  2. Step 2: Convert to fraction form
    229,749.28/316,832.88 = 149,146.72/x
  3. Step 3: Cross multiply
    229,749.28x = 316,832.88 × 149,146.72
  4. Step 4: Simplify right side
    229,749.28x = 47,254,584,840.15
  5. Step 5: Solve for x
    x = 47,254,584,840.15/229,749.28
  6. Step 6: Final answer
    x = 205,678.92

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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.