Home / 295,258.12-442,221.31-137,153.86

Finding the Fourth Proportional to 295,258.12, 442,221.31 and 137,153.86

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Solution

The fourth proportional to 295,258.12, 442,221.31 and 137,153.86 is: 205,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,258.12 : 442,221.31 = 137,153.86 : x
  2. Step 2: Convert to fraction form
    295,258.12/442,221.31 = 137,153.86/x
  3. Step 3: Cross multiply
    295,258.12x = 442,221.31 × 137,153.86
  4. Step 4: Simplify right side
    295,258.12x = 60,652,358,706.65
  5. Step 5: Solve for x
    x = 60,652,358,706.65/295,258.12
  6. Step 6: Final answer
    x = 205,421.48

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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.