Home / 380,061.30-569,735.55-143,562.90

Finding the Fourth Proportional to 380,061.30, 569,735.55 and 143,562.90

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Solution

The fourth proportional to 380,061.30, 569,735.55 and 143,562.90 is: 215,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,061.30 : 569,735.55 = 143,562.90 : x
  2. Step 2: Convert to fraction form
    380,061.30/569,735.55 = 143,562.90/x
  3. Step 3: Cross multiply
    380,061.30x = 569,735.55 × 143,562.90
  4. Step 4: Simplify right side
    380,061.30x = 81,792,887,791.10
  5. Step 5: Solve for x
    x = 81,792,887,791.10/380,061.30
  6. Step 6: Final answer
    x = 215,209.72

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1.5x scale

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.