Home / 239,326.17-330,285.69-137,384.63

Finding the Fourth Proportional to 239,326.17, 330,285.69 and 137,384.63

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Solution

The fourth proportional to 239,326.17, 330,285.69 and 137,384.63 is: 189,599.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,326.17 : 330,285.69 = 137,384.63 : x
  2. Step 2: Convert to fraction form
    239,326.17/330,285.69 = 137,384.63/x
  3. Step 3: Cross multiply
    239,326.17x = 330,285.69 × 137,384.63
  4. Step 4: Simplify right side
    239,326.17x = 45,376,177,314.94
  5. Step 5: Solve for x
    x = 45,376,177,314.94/239,326.17
  6. Step 6: Final answer
    x = 189,599.73

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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.