Home / 328,432.16-491,418-233,880.80

Finding the Fourth Proportional to 328,432.16, 491,418 and 233,880.80

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Solution

The fourth proportional to 328,432.16, 491,418 and 233,880.80 is: 349,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,432.16 : 491,418 = 233,880.80 : x
  2. Step 2: Convert to fraction form
    328,432.16/491,418 = 233,880.80/x
  3. Step 3: Cross multiply
    328,432.16x = 491,418 × 233,880.80
  4. Step 4: Simplify right side
    328,432.16x = 114,933,234,974.40
  5. Step 5: Solve for x
    x = 114,933,234,974.40/328,432.16
  6. Step 6: Final answer
    x = 349,945.13

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1.5x scale

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.