Home / 281,551.42-388,541.10-154,227.52

Finding the Fourth Proportional to 281,551.42, 388,541.10 and 154,227.52

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Solution

The fourth proportional to 281,551.42, 388,541.10 and 154,227.52 is: 212,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,551.42 : 388,541.10 = 154,227.52 : x
  2. Step 2: Convert to fraction form
    281,551.42/388,541.10 = 154,227.52/x
  3. Step 3: Cross multiply
    281,551.42x = 388,541.10 × 154,227.52
  4. Step 4: Simplify right side
    281,551.42x = 59,923,730,271.07
  5. Step 5: Solve for x
    x = 59,923,730,271.07/281,551.42
  6. Step 6: Final answer
    x = 212,834.05

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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.