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Finding the Fourth Proportional to 239,497.80, 330,529.08 and 137,536.62

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Solution

The fourth proportional to 239,497.80, 330,529.08 and 137,536.62 is: 189,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,497.80 : 330,529.08 = 137,536.62 : x
  2. Step 2: Convert to fraction form
    239,497.80/330,529.08 = 137,536.62/x
  3. Step 3: Cross multiply
    239,497.80x = 330,529.08 × 137,536.62
  4. Step 4: Simplify right side
    239,497.80x = 45,459,852,474.91
  5. Step 5: Solve for x
    x = 45,459,852,474.91/239,497.80
  6. Step 6: Final answer
    x = 189,813.24

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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.