Home / 315,740.22-473,610.33-128,766.30

Finding the Fourth Proportional to 315,740.22, 473,610.33 and 128,766.30

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Solution

The fourth proportional to 315,740.22, 473,610.33 and 128,766.30 is: 193,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,740.22 : 473,610.33 = 128,766.30 : x
  2. Step 2: Convert to fraction form
    315,740.22/473,610.33 = 128,766.30/x
  3. Step 3: Cross multiply
    315,740.22x = 473,610.33 × 128,766.30
  4. Step 4: Simplify right side
    315,740.22x = 60,985,049,835.88
  5. Step 5: Solve for x
    x = 60,985,049,835.88/315,740.22
  6. Step 6: Final answer
    x = 193,149.45

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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.