Home / 315,734.15-473,270.45-147,115.39

Finding the Fourth Proportional to 315,734.15, 473,270.45 and 147,115.39

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Solution

The fourth proportional to 315,734.15, 473,270.45 and 147,115.39 is: 220,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,734.15 : 473,270.45 = 147,115.39 : x
  2. Step 2: Convert to fraction form
    315,734.15/473,270.45 = 147,115.39/x
  3. Step 3: Cross multiply
    315,734.15x = 473,270.45 × 147,115.39
  4. Step 4: Simplify right side
    315,734.15x = 69,625,365,795.85
  5. Step 5: Solve for x
    x = 69,625,365,795.85/315,734.15
  6. Step 6: Final answer
    x = 220,518.96

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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.