Home / 342,847.12-473,072.80-215,432.52

Finding the Fourth Proportional to 342,847.12, 473,072.80 and 215,432.52

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Solution

The fourth proportional to 342,847.12, 473,072.80 and 215,432.52 is: 297,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,847.12 : 473,072.80 = 215,432.52 : x
  2. Step 2: Convert to fraction form
    342,847.12/473,072.80 = 215,432.52/x
  3. Step 3: Cross multiply
    342,847.12x = 473,072.80 × 215,432.52
  4. Step 4: Simplify right side
    342,847.12x = 101,915,265,447.46
  5. Step 5: Solve for x
    x = 101,915,265,447.46/342,847.12
  6. Step 6: Final answer
    x = 297,261.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.