Home / 280,045.24-386,492.40-171,213.43

Finding the Fourth Proportional to 280,045.24, 386,492.40 and 171,213.43

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Solution

The fourth proportional to 280,045.24, 386,492.40 and 171,213.43 is: 236,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,045.24 : 386,492.40 = 171,213.43 : x
  2. Step 2: Convert to fraction form
    280,045.24/386,492.40 = 171,213.43/x
  3. Step 3: Cross multiply
    280,045.24x = 386,492.40 × 171,213.43
  4. Step 4: Simplify right side
    280,045.24x = 66,172,689,472.93
  5. Step 5: Solve for x
    x = 66,172,689,472.93/280,045.24
  6. Step 6: Final answer
    x = 236,292.86

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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.