Home / 256,308.66-384,102.03-121,228.62

Finding the Fourth Proportional to 256,308.66, 384,102.03 and 121,228.62

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Solution

The fourth proportional to 256,308.66, 384,102.03 and 121,228.62 is: 181,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,308.66 : 384,102.03 = 121,228.62 : x
  2. Step 2: Convert to fraction form
    256,308.66/384,102.03 = 121,228.62/x
  3. Step 3: Cross multiply
    256,308.66x = 384,102.03 × 121,228.62
  4. Step 4: Simplify right side
    256,308.66x = 46,564,159,036.10
  5. Step 5: Solve for x
    x = 46,564,159,036.10/256,308.66
  6. Step 6: Final answer
    x = 181,672.20

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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.