Home / 231,931.76-320,008.20-147,017.84

Finding the Fourth Proportional to 231,931.76, 320,008.20 and 147,017.84

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Solution

The fourth proportional to 231,931.76, 320,008.20 and 147,017.84 is: 202,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,931.76 : 320,008.20 = 147,017.84 : x
  2. Step 2: Convert to fraction form
    231,931.76/320,008.20 = 147,017.84/x
  3. Step 3: Cross multiply
    231,931.76x = 320,008.20 × 147,017.84
  4. Step 4: Simplify right side
    231,931.76x = 47,046,914,346.29
  5. Step 5: Solve for x
    x = 47,046,914,346.29/231,931.76
  6. Step 6: Final answer
    x = 202,848.09

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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.