Home / 254,701.41-351,465.08-139,978.80

Finding the Fourth Proportional to 254,701.41, 351,465.08 and 139,978.80

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Solution

The fourth proportional to 254,701.41, 351,465.08 and 139,978.80 is: 193,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,701.41 : 351,465.08 = 139,978.80 : x
  2. Step 2: Convert to fraction form
    254,701.41/351,465.08 = 139,978.80/x
  3. Step 3: Cross multiply
    254,701.41x = 351,465.08 × 139,978.80
  4. Step 4: Simplify right side
    254,701.41x = 49,197,659,440.41
  5. Step 5: Solve for x
    x = 49,197,659,440.41/254,701.41
  6. Step 6: Final answer
    x = 193,158.17

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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.