Home / 307,387.20-424,193.52-171,421.32

Finding the Fourth Proportional to 307,387.20, 424,193.52 and 171,421.32

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Solution

The fourth proportional to 307,387.20, 424,193.52 and 171,421.32 is: 236,560.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,387.20 : 424,193.52 = 171,421.32 : x
  2. Step 2: Convert to fraction form
    307,387.20/424,193.52 = 171,421.32/x
  3. Step 3: Cross multiply
    307,387.20x = 424,193.52 × 171,421.32
  4. Step 4: Simplify right side
    307,387.20x = 72,715,813,133.85
  5. Step 5: Solve for x
    x = 72,715,813,133.85/307,387.20
  6. Step 6: Final answer
    x = 236,560.97

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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.