Home / 256,933.40-385,400.10-69,944.60

Finding the Fourth Proportional to 256,933.40, 385,400.10 and 69,944.60

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Solution

The fourth proportional to 256,933.40, 385,400.10 and 69,944.60 is: 104,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,933.40 : 385,400.10 = 69,944.60 : x
  2. Step 2: Convert to fraction form
    256,933.40/385,400.10 = 69,944.60/x
  3. Step 3: Cross multiply
    256,933.40x = 385,400.10 × 69,944.60
  4. Step 4: Simplify right side
    256,933.40x = 26,956,655,834.46
  5. Step 5: Solve for x
    x = 26,956,655,834.46/256,933.40
  6. Step 6: Final answer
    x = 104,916.90

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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.