Home / 454,374.11-681,683.85-138,822.41

Finding the Fourth Proportional to 454,374.11, 681,683.85 and 138,822.41

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Solution

The fourth proportional to 454,374.11, 681,683.85 and 138,822.41 is: 208,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,374.11 : 681,683.85 = 138,822.41 : x
  2. Step 2: Convert to fraction form
    454,374.11/681,683.85 = 138,822.41/x
  3. Step 3: Cross multiply
    454,374.11x = 681,683.85 × 138,822.41
  4. Step 4: Simplify right side
    454,374.11x = 94,632,996,619.29
  5. Step 5: Solve for x
    x = 94,632,996,619.29/454,374.11
  6. Step 6: Final answer
    x = 208,271.10

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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.