Home / 330,052.25-455,325.57-215,304.48

Finding the Fourth Proportional to 330,052.25, 455,325.57 and 215,304.48

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Solution

The fourth proportional to 330,052.25, 455,325.57 and 215,304.48 is: 297,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,052.25 : 455,325.57 = 215,304.48 : x
  2. Step 2: Convert to fraction form
    330,052.25/455,325.57 = 215,304.48/x
  3. Step 3: Cross multiply
    330,052.25x = 455,325.57 × 215,304.48
  4. Step 4: Simplify right side
    330,052.25x = 98,033,635,079.55
  5. Step 5: Solve for x
    x = 98,033,635,079.55/330,052.25
  6. Step 6: Final answer
    x = 297,024.59

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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.