Home / 281,731.71-388,790.95-152,670.46

Finding the Fourth Proportional to 281,731.71, 388,790.95 and 152,670.46

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Solution

The fourth proportional to 281,731.71, 388,790.95 and 152,670.46 is: 210,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,731.71 : 388,790.95 = 152,670.46 : x
  2. Step 2: Convert to fraction form
    281,731.71/388,790.95 = 152,670.46/x
  3. Step 3: Cross multiply
    281,731.71x = 388,790.95 × 152,670.46
  4. Step 4: Simplify right side
    281,731.71x = 59,356,893,180.34
  5. Step 5: Solve for x
    x = 59,356,893,180.34/281,731.71
  6. Step 6: Final answer
    x = 210,685.88

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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.