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Finding the Fourth Proportional to 253,868.32, 350,332.32 and 140,688.64

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Solution

The fourth proportional to 253,868.32, 350,332.32 and 140,688.64 is: 194,147.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,868.32 : 350,332.32 = 140,688.64 : x
  2. Step 2: Convert to fraction form
    253,868.32/350,332.32 = 140,688.64/x
  3. Step 3: Cross multiply
    253,868.32x = 350,332.32 × 140,688.64
  4. Step 4: Simplify right side
    253,868.32x = 49,287,777,648.84
  5. Step 5: Solve for x
    x = 49,287,777,648.84/253,868.32
  6. Step 6: Final answer
    x = 194,147.02

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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.