Home / 330,233.40-495,350.10-212,135.40

Finding the Fourth Proportional to 330,233.40, 495,350.10 and 212,135.40

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Solution

The fourth proportional to 330,233.40, 495,350.10 and 212,135.40 is: 318,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,233.40 : 495,350.10 = 212,135.40 : x
  2. Step 2: Convert to fraction form
    330,233.40/495,350.10 = 212,135.40/x
  3. Step 3: Cross multiply
    330,233.40x = 495,350.10 × 212,135.40
  4. Step 4: Simplify right side
    330,233.40x = 105,081,291,603.54
  5. Step 5: Solve for x
    x = 105,081,291,603.54/330,233.40
  6. Step 6: Final answer
    x = 318,203.10

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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.