Home / 231,848.64-320,060.67-155,417.70

Finding the Fourth Proportional to 231,848.64, 320,060.67 and 155,417.70

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Solution

The fourth proportional to 231,848.64, 320,060.67 and 155,417.70 is: 214,549.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,848.64 : 320,060.67 = 155,417.70 : x
  2. Step 2: Convert to fraction form
    231,848.64/320,060.67 = 155,417.70/x
  3. Step 3: Cross multiply
    231,848.64x = 320,060.67 × 155,417.70
  4. Step 4: Simplify right side
    231,848.64x = 49,743,093,191.86
  5. Step 5: Solve for x
    x = 49,743,093,191.86/231,848.64
  6. Step 6: Final answer
    x = 214,549.86

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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.