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Finding the Fourth Proportional to 383,856.20, 575,858.10 and 147,180.42

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Solution

The fourth proportional to 383,856.20, 575,858.10 and 147,180.42 is: 220,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,856.20 : 575,858.10 = 147,180.42 : x
  2. Step 2: Convert to fraction form
    383,856.20/575,858.10 = 147,180.42/x
  3. Step 3: Cross multiply
    383,856.20x = 575,858.10 × 147,180.42
  4. Step 4: Simplify right side
    383,856.20x = 84,755,037,018.40
  5. Step 5: Solve for x
    x = 84,755,037,018.40/383,856.20
  6. Step 6: Final answer
    x = 220,798.93

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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.