Home / 280,848.12-421,184.69-93,815.88

Finding the Fourth Proportional to 280,848.12, 421,184.69 and 93,815.88

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Solution

The fourth proportional to 280,848.12, 421,184.69 and 93,815.88 is: 140,694.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,848.12 : 421,184.69 = 93,815.88 : x
  2. Step 2: Convert to fraction form
    280,848.12/421,184.69 = 93,815.88/x
  3. Step 3: Cross multiply
    280,848.12x = 421,184.69 × 93,815.88
  4. Step 4: Simplify right side
    280,848.12x = 39,513,812,334.88
  5. Step 5: Solve for x
    x = 39,513,812,334.88/280,848.12
  6. Step 6: Final answer
    x = 140,694.59

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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.