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Finding the Fourth Proportional to 454,616.68, 681,900.29 and 139,073.59

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Solution

The fourth proportional to 454,616.68, 681,900.29 and 139,073.59 is: 208,602.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,616.68 : 681,900.29 = 139,073.59 : x
  2. Step 2: Convert to fraction form
    454,616.68/681,900.29 = 139,073.59/x
  3. Step 3: Cross multiply
    454,616.68x = 681,900.29 × 139,073.59
  4. Step 4: Simplify right side
    454,616.68x = 94,834,317,247.47
  5. Step 5: Solve for x
    x = 94,834,317,247.47/454,616.68
  6. Step 6: Final answer
    x = 208,602.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.