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Finding the Fourth Proportional to 243,880.62, 336,523.05 and 136,438.98

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Solution

The fourth proportional to 243,880.62, 336,523.05 and 136,438.98 is: 188,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,880.62 : 336,523.05 = 136,438.98 : x
  2. Step 2: Convert to fraction form
    243,880.62/336,523.05 = 136,438.98/x
  3. Step 3: Cross multiply
    243,880.62x = 336,523.05 × 136,438.98
  4. Step 4: Simplify right side
    243,880.62x = 45,914,861,688.49
  5. Step 5: Solve for x
    x = 45,914,861,688.49/243,880.62
  6. Step 6: Final answer
    x = 188,267.77

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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.