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Finding the Fourth Proportional to 253,095.75, 349,279.43 and 139,925.79

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Solution

The fourth proportional to 253,095.75, 349,279.43 and 139,925.79 is: 193,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,095.75 : 349,279.43 = 139,925.79 : x
  2. Step 2: Convert to fraction form
    253,095.75/349,279.43 = 139,925.79/x
  3. Step 3: Cross multiply
    253,095.75x = 349,279.43 × 139,925.79
  4. Step 4: Simplify right side
    253,095.75x = 48,873,199,473.87
  5. Step 5: Solve for x
    x = 48,873,199,473.87/253,095.75
  6. Step 6: Final answer
    x = 193,101.62

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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.