Home / 256,483.08-384,731.19-121,515.56

Finding the Fourth Proportional to 256,483.08, 384,731.19 and 121,515.56

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Solution

The fourth proportional to 256,483.08, 384,731.19 and 121,515.56 is: 182,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,483.08 : 384,731.19 = 121,515.56 : x
  2. Step 2: Convert to fraction form
    256,483.08/384,731.19 = 121,515.56/x
  3. Step 3: Cross multiply
    256,483.08x = 384,731.19 × 121,515.56
  4. Step 4: Simplify right side
    256,483.08x = 46,750,824,078.66
  5. Step 5: Solve for x
    x = 46,750,824,078.66/256,483.08
  6. Step 6: Final answer
    x = 182,276.45

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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.