Home / 281,030.08-421,517.76-154,628.77

Finding the Fourth Proportional to 281,030.08, 421,517.76 and 154,628.77

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Solution

The fourth proportional to 281,030.08, 421,517.76 and 154,628.77 is: 231,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,030.08 : 421,517.76 = 154,628.77 : x
  2. Step 2: Convert to fraction form
    281,030.08/421,517.76 = 154,628.77/x
  3. Step 3: Cross multiply
    281,030.08x = 421,517.76 × 154,628.77
  4. Step 4: Simplify right side
    281,030.08x = 65,178,772,761.96
  5. Step 5: Solve for x
    x = 65,178,772,761.96/281,030.08
  6. Step 6: Final answer
    x = 231,928.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.