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Finding the Fourth Proportional to 253,952.96, 350,459.05 and 139,242.08

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Solution

The fourth proportional to 253,952.96, 350,459.05 and 139,242.08 is: 192,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,952.96 : 350,459.05 = 139,242.08 : x
  2. Step 2: Convert to fraction form
    253,952.96/350,459.05 = 139,242.08/x
  3. Step 3: Cross multiply
    253,952.96x = 350,459.05 × 139,242.08
  4. Step 4: Simplify right side
    253,952.96x = 48,798,646,728.72
  5. Step 5: Solve for x
    x = 48,798,646,728.72/253,952.96
  6. Step 6: Final answer
    x = 192,156.24

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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.