Home / 231,001.28-318,779.36-130,403.52

Finding the Fourth Proportional to 231,001.28, 318,779.36 and 130,403.52

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Solution

The fourth proportional to 231,001.28, 318,779.36 and 130,403.52 is: 179,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,001.28 : 318,779.36 = 130,403.52 : x
  2. Step 2: Convert to fraction form
    231,001.28/318,779.36 = 130,403.52/x
  3. Step 3: Cross multiply
    231,001.28x = 318,779.36 × 130,403.52
  4. Step 4: Simplify right side
    231,001.28x = 41,569,950,647.35
  5. Step 5: Solve for x
    x = 41,569,950,647.35/231,001.28
  6. Step 6: Final answer
    x = 179,955.50

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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.