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Finding the Fourth Proportional to 253,599.86, 349,963.53 and 140,420.18

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Solution

The fourth proportional to 253,599.86, 349,963.53 and 140,420.18 is: 193,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,599.86 : 349,963.53 = 140,420.18 : x
  2. Step 2: Convert to fraction form
    253,599.86/349,963.53 = 140,420.18/x
  3. Step 3: Cross multiply
    253,599.86x = 349,963.53 × 140,420.18
  4. Step 4: Simplify right side
    253,599.86x = 49,141,941,876.04
  5. Step 5: Solve for x
    x = 49,141,941,876.04/253,599.86
  6. Step 6: Final answer
    x = 193,777.48

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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.