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Finding the Fourth Proportional to 253,515.58, 349,851.60 and 138,801.66

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Solution

The fourth proportional to 253,515.58, 349,851.60 and 138,801.66 is: 191,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,515.58 : 349,851.60 = 138,801.66 : x
  2. Step 2: Convert to fraction form
    253,515.58/349,851.60 = 138,801.66/x
  3. Step 3: Cross multiply
    253,515.58x = 349,851.60 × 138,801.66
  4. Step 4: Simplify right side
    253,515.58x = 48,559,982,833.66
  5. Step 5: Solve for x
    x = 48,559,982,833.66/253,515.58
  6. Step 6: Final answer
    x = 191,546.35

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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.