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Finding the Fourth Proportional to 342,820.20, 473,118.12 and 197,649.60

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Solution

The fourth proportional to 342,820.20, 473,118.12 and 197,649.60 is: 272,771.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,820.20 : 473,118.12 = 197,649.60 : x
  2. Step 2: Convert to fraction form
    342,820.20/473,118.12 = 197,649.60/x
  3. Step 3: Cross multiply
    342,820.20x = 473,118.12 × 197,649.60
  4. Step 4: Simplify right side
    342,820.20x = 93,511,607,170.75
  5. Step 5: Solve for x
    x = 93,511,607,170.75/342,820.20
  6. Step 6: Final answer
    x = 272,771.58

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1.5x scale

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.