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Finding the Fourth Proportional to 307,627.64, 424,509.86 and 173,483

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Solution

The fourth proportional to 307,627.64, 424,509.86 and 173,483 is: 239,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,627.64 : 424,509.86 = 173,483 : x
  2. Step 2: Convert to fraction form
    307,627.64/424,509.86 = 173,483/x
  3. Step 3: Cross multiply
    307,627.64x = 424,509.86 × 173,483
  4. Step 4: Simplify right side
    307,627.64x = 73,645,244,042.38
  5. Step 5: Solve for x
    x = 73,645,244,042.38/307,627.64
  6. Step 6: Final answer
    x = 239,397.36

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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.