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Finding the Fourth Proportional to 315,277.28, 472,902.69 and 146,739.63

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Solution

The fourth proportional to 315,277.28, 472,902.69 and 146,739.63 is: 220,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,277.28 : 472,902.69 = 146,739.63 : x
  2. Step 2: Convert to fraction form
    315,277.28/472,902.69 = 146,739.63/x
  3. Step 3: Cross multiply
    315,277.28x = 472,902.69 × 146,739.63
  4. Step 4: Simplify right side
    315,277.28x = 69,393,565,756.60
  5. Step 5: Solve for x
    x = 69,393,565,756.60/315,277.28
  6. Step 6: Final answer
    x = 220,103.29

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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.