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Finding the Fourth Proportional to 239,663.99, 330,856.16 and 149,049.15

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Solution

The fourth proportional to 239,663.99, 330,856.16 and 149,049.15 is: 205,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,663.99 : 330,856.16 = 149,049.15 : x
  2. Step 2: Convert to fraction form
    239,663.99/330,856.16 = 149,049.15/x
  3. Step 3: Cross multiply
    239,663.99x = 330,856.16 × 149,049.15
  4. Step 4: Simplify right side
    239,663.99x = 49,313,828,675.02
  5. Step 5: Solve for x
    x = 49,313,828,675.02/239,663.99
  6. Step 6: Final answer
    x = 205,762.36

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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.