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Finding the Fourth Proportional to 226,006.68, 338,878.74 and 85,688.76

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Solution

The fourth proportional to 226,006.68, 338,878.74 and 85,688.76 is: 128,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,006.68 : 338,878.74 = 85,688.76 : x
  2. Step 2: Convert to fraction form
    226,006.68/338,878.74 = 85,688.76/x
  3. Step 3: Cross multiply
    226,006.68x = 338,878.74 × 85,688.76
  4. Step 4: Simplify right side
    226,006.68x = 29,038,099,020.96
  5. Step 5: Solve for x
    x = 29,038,099,020.96/226,006.68
  6. Step 6: Final answer
    x = 128,483.37

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1.5x scale

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.