Home / 296,505.12-444,782.40-86,143.08

Finding the Fourth Proportional to 296,505.12, 444,782.40 and 86,143.08

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Solution

The fourth proportional to 296,505.12, 444,782.40 and 86,143.08 is: 129,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,505.12 : 444,782.40 = 86,143.08 : x
  2. Step 2: Convert to fraction form
    296,505.12/444,782.40 = 86,143.08/x
  3. Step 3: Cross multiply
    296,505.12x = 444,782.40 × 86,143.08
  4. Step 4: Simplify right side
    296,505.12x = 38,314,925,865.79
  5. Step 5: Solve for x
    x = 38,314,925,865.79/296,505.12
  6. Step 6: Final answer
    x = 129,221.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.