Home / 253,430.64-349,750.68-140,253.36

Finding the Fourth Proportional to 253,430.64, 349,750.68 and 140,253.36

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Solution

The fourth proportional to 253,430.64, 349,750.68 and 140,253.36 is: 193,558.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,430.64 : 349,750.68 = 140,253.36 : x
  2. Step 2: Convert to fraction form
    253,430.64/349,750.68 = 140,253.36/x
  3. Step 3: Cross multiply
    253,430.64x = 349,750.68 × 140,253.36
  4. Step 4: Simplify right side
    253,430.64x = 49,053,708,032.28
  5. Step 5: Solve for x
    x = 49,053,708,032.28/253,430.64
  6. Step 6: Final answer
    x = 193,558.71

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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.