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Finding the Fourth Proportional to 307,377.36, 424,182.58 and 171,419.90

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Solution

The fourth proportional to 307,377.36, 424,182.58 and 171,419.90 is: 236,560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,377.36 : 424,182.58 = 171,419.90 : x
  2. Step 2: Convert to fraction form
    307,377.36/424,182.58 = 171,419.90/x
  3. Step 3: Cross multiply
    307,377.36x = 424,182.58 × 171,419.90
  4. Step 4: Simplify right side
    307,377.36x = 72,713,332,895.88
  5. Step 5: Solve for x
    x = 72,713,332,895.88/307,377.36
  6. Step 6: Final answer
    x = 236,560.47

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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.