Home / 260,164.12-390,237.28-110,307.92

Finding the Fourth Proportional to 260,164.12, 390,237.28 and 110,307.92

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Solution

The fourth proportional to 260,164.12, 390,237.28 and 110,307.92 is: 165,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,164.12 : 390,237.28 = 110,307.92 : x
  2. Step 2: Convert to fraction form
    260,164.12/390,237.28 = 110,307.92/x
  3. Step 3: Cross multiply
    260,164.12x = 390,237.28 × 110,307.92
  4. Step 4: Simplify right side
    260,164.12x = 43,046,262,663.26
  5. Step 5: Solve for x
    x = 43,046,262,663.26/260,164.12
  6. Step 6: Final answer
    x = 165,458.11

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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.