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Finding the Fourth Proportional to 254,207.91, 350,806.78 and 139,487.29

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Solution

The fourth proportional to 254,207.91, 350,806.78 and 139,487.29 is: 192,492.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,207.91 : 350,806.78 = 139,487.29 : x
  2. Step 2: Convert to fraction form
    254,207.91/350,806.78 = 139,487.29/x
  3. Step 3: Cross multiply
    254,207.91x = 350,806.78 × 139,487.29
  4. Step 4: Simplify right side
    254,207.91x = 48,933,087,055.83
  5. Step 5: Solve for x
    x = 48,933,087,055.83/254,207.91
  6. Step 6: Final answer
    x = 192,492.39

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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.