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Finding the Fourth Proportional to 253,549.98, 349,904.34 and 138,833.46

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Solution

The fourth proportional to 253,549.98, 349,904.34 and 138,833.46 is: 191,593.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,549.98 : 349,904.34 = 138,833.46 : x
  2. Step 2: Convert to fraction form
    253,549.98/349,904.34 = 138,833.46/x
  3. Step 3: Cross multiply
    253,549.98x = 349,904.34 × 138,833.46
  4. Step 4: Simplify right side
    253,549.98x = 48,578,430,191.22
  5. Step 5: Solve for x
    x = 48,578,430,191.22/253,549.98
  6. Step 6: Final answer
    x = 191,593.11

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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.