Home / 330,448.16-456,003.60-187,205.28

Finding the Fourth Proportional to 330,448.16, 456,003.60 and 187,205.28

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Solution

The fourth proportional to 330,448.16, 456,003.60 and 187,205.28 is: 258,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,448.16 : 456,003.60 = 187,205.28 : x
  2. Step 2: Convert to fraction form
    330,448.16/456,003.60 = 187,205.28/x
  3. Step 3: Cross multiply
    330,448.16x = 456,003.60 × 187,205.28
  4. Step 4: Simplify right side
    330,448.16x = 85,366,281,619.01
  5. Step 5: Solve for x
    x = 85,366,281,619.01/330,448.16
  6. Step 6: Final answer
    x = 258,334.87

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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.