Home / 314,721.20-472,081.80-146,241.20

Finding the Fourth Proportional to 314,721.20, 472,081.80 and 146,241.20

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Solution

The fourth proportional to 314,721.20, 472,081.80 and 146,241.20 is: 219,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,721.20 : 472,081.80 = 146,241.20 : x
  2. Step 2: Convert to fraction form
    314,721.20/472,081.80 = 146,241.20/x
  3. Step 3: Cross multiply
    314,721.20x = 472,081.80 × 146,241.20
  4. Step 4: Simplify right side
    314,721.20x = 69,037,808,930.16
  5. Step 5: Solve for x
    x = 69,037,808,930.16/314,721.20
  6. Step 6: Final answer
    x = 219,361.80

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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.