Home / 402,219.40-603,669.30-165,731.80

Finding the Fourth Proportional to 402,219.40, 603,669.30 and 165,731.80

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Solution

The fourth proportional to 402,219.40, 603,669.30 and 165,731.80 is: 248,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,219.40 : 603,669.30 = 165,731.80 : x
  2. Step 2: Convert to fraction form
    402,219.40/603,669.30 = 165,731.80/x
  3. Step 3: Cross multiply
    402,219.40x = 603,669.30 × 165,731.80
  4. Step 4: Simplify right side
    402,219.40x = 100,047,199,693.74
  5. Step 5: Solve for x
    x = 100,047,199,693.74/402,219.40
  6. Step 6: Final answer
    x = 248,737.88

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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.