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Finding the Fourth Proportional to 254,252.72, 350,856.77 and 139,528.78

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Solution

The fourth proportional to 254,252.72, 350,856.77 and 139,528.78 is: 192,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,252.72 : 350,856.77 = 139,528.78 : x
  2. Step 2: Convert to fraction form
    254,252.72/350,856.77 = 139,528.78/x
  3. Step 3: Cross multiply
    254,252.72x = 350,856.77 × 139,528.78
  4. Step 4: Simplify right side
    254,252.72x = 48,954,615,498.05
  5. Step 5: Solve for x
    x = 48,954,615,498.05/254,252.72
  6. Step 6: Final answer
    x = 192,543.13

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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.