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Finding the Fourth Proportional to 253,312.68, 349,558.02 and 140,133

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Solution

The fourth proportional to 253,312.68, 349,558.02 and 140,133 is: 193,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,312.68 : 349,558.02 = 140,133 : x
  2. Step 2: Convert to fraction form
    253,312.68/349,558.02 = 140,133/x
  3. Step 3: Cross multiply
    253,312.68x = 349,558.02 × 140,133
  4. Step 4: Simplify right side
    253,312.68x = 48,984,614,016.66
  5. Step 5: Solve for x
    x = 48,984,614,016.66/253,312.68
  6. Step 6: Final answer
    x = 193,376.08

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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.