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Finding the Fourth Proportional to 243,713.80, 336,322.74 and 136,282.60

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Solution

The fourth proportional to 243,713.80, 336,322.74 and 136,282.60 is: 188,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,713.80 : 336,322.74 = 136,282.60 : x
  2. Step 2: Convert to fraction form
    243,713.80/336,322.74 = 136,282.60/x
  3. Step 3: Cross multiply
    243,713.80x = 336,322.74 × 136,282.60
  4. Step 4: Simplify right side
    243,713.80x = 45,834,937,446.32
  5. Step 5: Solve for x
    x = 45,834,937,446.32/243,713.80
  6. Step 6: Final answer
    x = 188,068.70

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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.