Home / 228,420.20-342,511.99-121,775.50

Finding the Fourth Proportional to 228,420.20, 342,511.99 and 121,775.50

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Solution

The fourth proportional to 228,420.20, 342,511.99 and 121,775.50 is: 182,600.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,420.20 : 342,511.99 = 121,775.50 : x
  2. Step 2: Convert to fraction form
    228,420.20/342,511.99 = 121,775.50/x
  3. Step 3: Cross multiply
    228,420.20x = 342,511.99 × 121,775.50
  4. Step 4: Simplify right side
    228,420.20x = 41,709,569,646.93
  5. Step 5: Solve for x
    x = 41,709,569,646.93/228,420.20
  6. Step 6: Final answer
    x = 182,600.18

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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.