Home / 310,197.12-428,082.56-174,255.04

Finding the Fourth Proportional to 310,197.12, 428,082.56 and 174,255.04

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Solution

The fourth proportional to 310,197.12, 428,082.56 and 174,255.04 is: 240,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,197.12 : 428,082.56 = 174,255.04 : x
  2. Step 2: Convert to fraction form
    310,197.12/428,082.56 = 174,255.04/x
  3. Step 3: Cross multiply
    310,197.12x = 428,082.56 × 174,255.04
  4. Step 4: Simplify right side
    310,197.12x = 74,595,543,616.10
  5. Step 5: Solve for x
    x = 74,595,543,616.10/310,197.12
  6. Step 6: Final answer
    x = 240,477.87

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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.