Home / 280,763.04-421,024.64-162,516

Finding the Fourth Proportional to 280,763.04, 421,024.64 and 162,516

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Solution

The fourth proportional to 280,763.04, 421,024.64 and 162,516 is: 243,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,763.04 : 421,024.64 = 162,516 : x
  2. Step 2: Convert to fraction form
    280,763.04/421,024.64 = 162,516/x
  3. Step 3: Cross multiply
    280,763.04x = 421,024.64 × 162,516
  4. Step 4: Simplify right side
    280,763.04x = 68,423,240,394.24
  5. Step 5: Solve for x
    x = 68,423,240,394.24/280,763.04
  6. Step 6: Final answer
    x = 243,704.59

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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.