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Finding the Fourth Proportional to 342,275.04, 472,469.22 and 306,400.14

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Solution

The fourth proportional to 342,275.04, 472,469.22 and 306,400.14 is: 422,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,275.04 : 472,469.22 = 306,400.14 : x
  2. Step 2: Convert to fraction form
    342,275.04/472,469.22 = 306,400.14/x
  3. Step 3: Cross multiply
    342,275.04x = 472,469.22 × 306,400.14
  4. Step 4: Simplify right side
    342,275.04x = 144,764,635,153.69
  5. Step 5: Solve for x
    x = 144,764,635,153.69/342,275.04
  6. Step 6: Final answer
    x = 422,948.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.