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Finding the Fourth Proportional to 421,315.20, 632,410.08 and 244,168.32

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Solution

The fourth proportional to 421,315.20, 632,410.08 and 244,168.32 is: 366,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,315.20 : 632,410.08 = 244,168.32 : x
  2. Step 2: Convert to fraction form
    421,315.20/632,410.08 = 244,168.32/x
  3. Step 3: Cross multiply
    421,315.20x = 632,410.08 × 244,168.32
  4. Step 4: Simplify right side
    421,315.20x = 154,414,506,784.67
  5. Step 5: Solve for x
    x = 154,414,506,784.67/421,315.20
  6. Step 6: Final answer
    x = 366,505.90

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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.