Home / 330,582.08-495,868.72-81,266.24

Finding the Fourth Proportional to 330,582.08, 495,868.72 and 81,266.24

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Solution

The fourth proportional to 330,582.08, 495,868.72 and 81,266.24 is: 121,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,582.08 : 495,868.72 = 81,266.24 : x
  2. Step 2: Convert to fraction form
    330,582.08/495,868.72 = 81,266.24/x
  3. Step 3: Cross multiply
    330,582.08x = 495,868.72 × 81,266.24
  4. Step 4: Simplify right side
    330,582.08x = 40,297,386,408.01
  5. Step 5: Solve for x
    x = 40,297,386,408.01/330,582.08
  6. Step 6: Final answer
    x = 121,898.28

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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.