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Finding the Fourth Proportional to 383,600.10, 575,400.15 and 146,820.90

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Solution

The fourth proportional to 383,600.10, 575,400.15 and 146,820.90 is: 220,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,600.10 : 575,400.15 = 146,820.90 : x
  2. Step 2: Convert to fraction form
    383,600.10/575,400.15 = 146,820.90/x
  3. Step 3: Cross multiply
    383,600.10x = 575,400.15 × 146,820.90
  4. Step 4: Simplify right side
    383,600.10x = 84,480,767,883.14
  5. Step 5: Solve for x
    x = 84,480,767,883.14/383,600.10
  6. Step 6: Final answer
    x = 220,231.35

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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.