Home / 330,400.10-455,937.42-187,157.24

Finding the Fourth Proportional to 330,400.10, 455,937.42 and 187,157.24

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Solution

The fourth proportional to 330,400.10, 455,937.42 and 187,157.24 is: 258,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,400.10 : 455,937.42 = 187,157.24 : x
  2. Step 2: Convert to fraction form
    330,400.10/455,937.42 = 187,157.24/x
  3. Step 3: Cross multiply
    330,400.10x = 455,937.42 × 187,157.24
  4. Step 4: Simplify right side
    330,400.10x = 85,331,989,139.92
  5. Step 5: Solve for x
    x = 85,331,989,139.92/330,400.10
  6. Step 6: Final answer
    x = 258,268.65

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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.