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Finding the Fourth Proportional to 382,030.80, 573,046.20 and 247,311.60

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Solution

The fourth proportional to 382,030.80, 573,046.20 and 247,311.60 is: 370,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,030.80 : 573,046.20 = 247,311.60 : x
  2. Step 2: Convert to fraction form
    382,030.80/573,046.20 = 247,311.60/x
  3. Step 3: Cross multiply
    382,030.80x = 573,046.20 × 247,311.60
  4. Step 4: Simplify right side
    382,030.80x = 141,720,972,595.92
  5. Step 5: Solve for x
    x = 141,720,972,595.92/382,030.80
  6. Step 6: Final answer
    x = 370,967.40

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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.