Home / 256,629.42-384,925.68-79,117.92

Finding the Fourth Proportional to 256,629.42, 384,925.68 and 79,117.92

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Solution

The fourth proportional to 256,629.42, 384,925.68 and 79,117.92 is: 118,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,629.42 : 384,925.68 = 79,117.92 : x
  2. Step 2: Convert to fraction form
    256,629.42/384,925.68 = 79,117.92/x
  3. Step 3: Cross multiply
    256,629.42x = 384,925.68 × 79,117.92
  4. Step 4: Simplify right side
    256,629.42x = 30,454,519,156.19
  5. Step 5: Solve for x
    x = 30,454,519,156.19/256,629.42
  6. Step 6: Final answer
    x = 118,671.19

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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.