Home / 330,759.20-456,409.68-187,490.72

Finding the Fourth Proportional to 330,759.20, 456,409.68 and 187,490.72

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Solution

The fourth proportional to 330,759.20, 456,409.68 and 187,490.72 is: 258,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,759.20 : 456,409.68 = 187,490.72 : x
  2. Step 2: Convert to fraction form
    330,759.20/456,409.68 = 187,490.72/x
  3. Step 3: Cross multiply
    330,759.20x = 456,409.68 × 187,490.72
  4. Step 4: Simplify right side
    330,759.20x = 85,572,579,518.17
  5. Step 5: Solve for x
    x = 85,572,579,518.17/330,759.20
  6. Step 6: Final answer
    x = 258,715.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.