Home / 253,319.53-349,565.21-140,142.28

Finding the Fourth Proportional to 253,319.53, 349,565.21 and 140,142.28

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Solution

The fourth proportional to 253,319.53, 349,565.21 and 140,142.28 is: 193,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,319.53 : 349,565.21 = 140,142.28 : x
  2. Step 2: Convert to fraction form
    253,319.53/349,565.21 = 140,142.28/x
  3. Step 3: Cross multiply
    253,319.53x = 349,565.21 × 140,142.28
  4. Step 4: Simplify right side
    253,319.53x = 48,988,864,837.37
  5. Step 5: Solve for x
    x = 48,988,864,837.37/253,319.53
  6. Step 6: Final answer
    x = 193,387.64

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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.