Home / 280,763.61-421,342.24-162,271.95

Finding the Fourth Proportional to 280,763.61, 421,342.24 and 162,271.95

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Solution

The fourth proportional to 280,763.61, 421,342.24 and 162,271.95 is: 243,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,763.61 : 421,342.24 = 162,271.95 : x
  2. Step 2: Convert to fraction form
    280,763.61/421,342.24 = 162,271.95/x
  3. Step 3: Cross multiply
    280,763.61x = 421,342.24 × 162,271.95
  4. Step 4: Simplify right side
    280,763.61x = 68,372,026,902.17
  5. Step 5: Solve for x
    x = 68,372,026,902.17/280,763.61
  6. Step 6: Final answer
    x = 243,521.68

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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.