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Finding the Fourth Proportional to 253,399.48, 349,698.54 and 140,232.76

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Solution

The fourth proportional to 253,399.48, 349,698.54 and 140,232.76 is: 193,525.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,399.48 : 349,698.54 = 140,232.76 : x
  2. Step 2: Convert to fraction form
    253,399.48/349,698.54 = 140,232.76/x
  3. Step 3: Cross multiply
    253,399.48x = 349,698.54 × 140,232.76
  4. Step 4: Simplify right side
    253,399.48x = 49,039,191,432.17
  5. Step 5: Solve for x
    x = 49,039,191,432.17/253,399.48
  6. Step 6: Final answer
    x = 193,525.23

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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.