Home / 240,319.60-360,047.40-115,385.20

Finding the Fourth Proportional to 240,319.60, 360,047.40 and 115,385.20

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Solution

The fourth proportional to 240,319.60, 360,047.40 and 115,385.20 is: 172,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,319.60 : 360,047.40 = 115,385.20 : x
  2. Step 2: Convert to fraction form
    240,319.60/360,047.40 = 115,385.20/x
  3. Step 3: Cross multiply
    240,319.60x = 360,047.40 × 115,385.20
  4. Step 4: Simplify right side
    240,319.60x = 41,544,141,258.48
  5. Step 5: Solve for x
    x = 41,544,141,258.48/240,319.60
  6. Step 6: Final answer
    x = 172,870.38

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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.