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Finding the Fourth Proportional to 315,200.44, 472,800.66 and 135,246.79

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Solution

The fourth proportional to 315,200.44, 472,800.66 and 135,246.79 is: 202,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,200.44 : 472,800.66 = 135,246.79 : x
  2. Step 2: Convert to fraction form
    315,200.44/472,800.66 = 135,246.79/x
  3. Step 3: Cross multiply
    315,200.44x = 472,800.66 × 135,246.79
  4. Step 4: Simplify right side
    315,200.44x = 63,944,771,574.88
  5. Step 5: Solve for x
    x = 63,944,771,574.88/315,200.44
  6. Step 6: Final answer
    x = 202,870.19

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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.