Home / 281,325.76-388,229.70-154,001.32

Finding the Fourth Proportional to 281,325.76, 388,229.70 and 154,001.32

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Solution

The fourth proportional to 281,325.76, 388,229.70 and 154,001.32 is: 212,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,325.76 : 388,229.70 = 154,001.32 : x
  2. Step 2: Convert to fraction form
    281,325.76/388,229.70 = 154,001.32/x
  3. Step 3: Cross multiply
    281,325.76x = 388,229.70 × 154,001.32
  4. Step 4: Simplify right side
    281,325.76x = 59,787,886,263.20
  5. Step 5: Solve for x
    x = 59,787,886,263.20/281,325.76
  6. Step 6: Final answer
    x = 212,521.90

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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.