Home / 315,321.60-472,701.15-115,595.36

Finding the Fourth Proportional to 315,321.60, 472,701.15 and 115,595.36

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Solution

The fourth proportional to 315,321.60, 472,701.15 and 115,595.36 is: 173,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,321.60 : 472,701.15 = 115,595.36 : x
  2. Step 2: Convert to fraction form
    315,321.60/472,701.15 = 115,595.36/x
  3. Step 3: Cross multiply
    315,321.60x = 472,701.15 × 115,595.36
  4. Step 4: Simplify right side
    315,321.60x = 54,642,057,243.16
  5. Step 5: Solve for x
    x = 54,642,057,243.16/315,321.60
  6. Step 6: Final answer
    x = 173,289.93

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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.