Home / 221,830.68-306,138.78-146,325.72

Finding the Fourth Proportional to 221,830.68, 306,138.78 and 146,325.72

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Solution

The fourth proportional to 221,830.68, 306,138.78 and 146,325.72 is: 201,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,830.68 : 306,138.78 = 146,325.72 : x
  2. Step 2: Convert to fraction form
    221,830.68/306,138.78 = 146,325.72/x
  3. Step 3: Cross multiply
    221,830.68x = 306,138.78 × 146,325.72
  4. Step 4: Simplify right side
    221,830.68x = 44,795,977,403.42
  5. Step 5: Solve for x
    x = 44,795,977,403.42/221,830.68
  6. Step 6: Final answer
    x = 201,937.70

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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.