Home / 256,484.08-384,732.69-121,516.55

Finding the Fourth Proportional to 256,484.08, 384,732.69 and 121,516.55

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Solution

The fourth proportional to 256,484.08, 384,732.69 and 121,516.55 is: 182,277.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,484.08 : 384,732.69 = 121,516.55 : x
  2. Step 2: Convert to fraction form
    256,484.08/384,732.69 = 121,516.55/x
  3. Step 3: Cross multiply
    256,484.08x = 384,732.69 × 121,516.55
  4. Step 4: Simplify right side
    256,484.08x = 46,751,389,161.02
  5. Step 5: Solve for x
    x = 46,751,389,161.02/256,484.08
  6. Step 6: Final answer
    x = 182,277.94

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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.