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Finding the Fourth Proportional to 243,494.40, 336,015.84 and 136,065.32

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Solution

The fourth proportional to 243,494.40, 336,015.84 and 136,065.32 is: 187,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,494.40 : 336,015.84 = 136,065.32 : x
  2. Step 2: Convert to fraction form
    243,494.40/336,015.84 = 136,065.32/x
  3. Step 3: Cross multiply
    243,494.40x = 336,015.84 × 136,065.32
  4. Step 4: Simplify right side
    243,494.40x = 45,720,102,884.89
  5. Step 5: Solve for x
    x = 45,720,102,884.89/243,494.40
  6. Step 6: Final answer
    x = 187,766.54

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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.