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Finding the Fourth Proportional to 315,027.40, 472,605.90 and 104,816.20

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Solution

The fourth proportional to 315,027.40, 472,605.90 and 104,816.20 is: 157,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,027.40 : 472,605.90 = 104,816.20 : x
  2. Step 2: Convert to fraction form
    315,027.40/472,605.90 = 104,816.20/x
  3. Step 3: Cross multiply
    315,027.40x = 472,605.90 × 104,816.20
  4. Step 4: Simplify right side
    315,027.40x = 49,536,754,535.58
  5. Step 5: Solve for x
    x = 49,536,754,535.58/315,027.40
  6. Step 6: Final answer
    x = 157,245.86

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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.