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Finding the Fourth Proportional to 307,798.97, 424,939.23 and 234,627.39

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Solution

The fourth proportional to 307,798.97, 424,939.23 and 234,627.39 is: 323,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,798.97 : 424,939.23 = 234,627.39 : x
  2. Step 2: Convert to fraction form
    307,798.97/424,939.23 = 234,627.39/x
  3. Step 3: Cross multiply
    307,798.97x = 424,939.23 × 234,627.39
  4. Step 4: Simplify right side
    307,798.97x = 99,702,382,443.51
  5. Step 5: Solve for x
    x = 99,702,382,443.51/307,798.97
  6. Step 6: Final answer
    x = 323,920.46

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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.