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Finding the Fourth Proportional to 342,047.28, 472,025.88 and 191,144.28

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Solution

The fourth proportional to 342,047.28, 472,025.88 and 191,144.28 is: 263,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,047.28 : 472,025.88 = 191,144.28 : x
  2. Step 2: Convert to fraction form
    342,047.28/472,025.88 = 191,144.28/x
  3. Step 3: Cross multiply
    342,047.28x = 472,025.88 × 191,144.28
  4. Step 4: Simplify right side
    342,047.28x = 90,225,046,973.97
  5. Step 5: Solve for x
    x = 90,225,046,973.97/342,047.28
  6. Step 6: Final answer
    x = 263,779.46

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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.