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Finding the Fourth Proportional to 290,435.36, 434,715.60 and 150,000.80

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Solution

The fourth proportional to 290,435.36, 434,715.60 and 150,000.80 is: 224,517.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,435.36 : 434,715.60 = 150,000.80 : x
  2. Step 2: Convert to fraction form
    290,435.36/434,715.60 = 150,000.80/x
  3. Step 3: Cross multiply
    290,435.36x = 434,715.60 × 150,000.80
  4. Step 4: Simplify right side
    290,435.36x = 65,207,687,772.48
  5. Step 5: Solve for x
    x = 65,207,687,772.48/290,435.36
  6. Step 6: Final answer
    x = 224,517.04

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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.