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Finding the Fourth Proportional to 313,842.02, 472,470.75 and 285,941.30

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Solution

The fourth proportional to 313,842.02, 472,470.75 and 285,941.30 is: 430,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,842.02 : 472,470.75 = 285,941.30 : x
  2. Step 2: Convert to fraction form
    313,842.02/472,470.75 = 285,941.30/x
  3. Step 3: Cross multiply
    313,842.02x = 472,470.75 × 285,941.30
  4. Step 4: Simplify right side
    313,842.02x = 135,098,900,466.98
  5. Step 5: Solve for x
    x = 135,098,900,466.98/313,842.02
  6. Step 6: Final answer
    x = 430,467.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.