Home / 231,649.20-347,214.60-98,506.80

Finding the Fourth Proportional to 231,649.20, 347,214.60 and 98,506.80

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Solution

The fourth proportional to 231,649.20, 347,214.60 and 98,506.80 is: 147,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,649.20 : 347,214.60 = 98,506.80 : x
  2. Step 2: Convert to fraction form
    231,649.20/347,214.60 = 98,506.80/x
  3. Step 3: Cross multiply
    231,649.20x = 347,214.60 × 98,506.80
  4. Step 4: Simplify right side
    231,649.20x = 34,202,999,159.28
  5. Step 5: Solve for x
    x = 34,202,999,159.28/231,649.20
  6. Step 6: Final answer
    x = 147,649.98

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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.