Home / 280,979.46-421,097.40-147,587.04

Finding the Fourth Proportional to 280,979.46, 421,097.40 and 147,587.04

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Solution

The fourth proportional to 280,979.46, 421,097.40 and 147,587.04 is: 221,185.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,979.46 : 421,097.40 = 147,587.04 : x
  2. Step 2: Convert to fraction form
    280,979.46/421,097.40 = 147,587.04/x
  3. Step 3: Cross multiply
    280,979.46x = 421,097.40 × 147,587.04
  4. Step 4: Simplify right side
    280,979.46x = 62,148,518,817.70
  5. Step 5: Solve for x
    x = 62,148,518,817.70/280,979.46
  6. Step 6: Final answer
    x = 221,185.27

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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.