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Finding the Fourth Proportional to 239,674.14, 330,870.14 and 149,059.30

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Solution

The fourth proportional to 239,674.14, 330,870.14 and 149,059.30 is: 205,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,674.14 : 330,870.14 = 149,059.30 : x
  2. Step 2: Convert to fraction form
    239,674.14/330,870.14 = 149,059.30/x
  3. Step 3: Cross multiply
    239,674.14x = 330,870.14 × 149,059.30
  4. Step 4: Simplify right side
    239,674.14x = 49,319,271,459.30
  5. Step 5: Solve for x
    x = 49,319,271,459.30/239,674.14
  6. Step 6: Final answer
    x = 205,776.36

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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.