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Finding the Fourth Proportional to 240,486.84, 331,870.68 and 138,474.90

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Solution

The fourth proportional to 240,486.84, 331,870.68 and 138,474.90 is: 191,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,486.84 : 331,870.68 = 138,474.90 : x
  2. Step 2: Convert to fraction form
    240,486.84/331,870.68 = 138,474.90/x
  3. Step 3: Cross multiply
    240,486.84x = 331,870.68 × 138,474.90
  4. Step 4: Simplify right side
    240,486.84x = 45,955,759,225.93
  5. Step 5: Solve for x
    x = 45,955,759,225.93/240,486.84
  6. Step 6: Final answer
    x = 191,094.69

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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.