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Finding the Fourth Proportional to 380,664.81, 525,079.80 and 244,875.78

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Solution

The fourth proportional to 380,664.81, 525,079.80 and 244,875.78 is: 337,775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,664.81 : 525,079.80 = 244,875.78 : x
  2. Step 2: Convert to fraction form
    380,664.81/525,079.80 = 244,875.78/x
  3. Step 3: Cross multiply
    380,664.81x = 525,079.80 × 244,875.78
  4. Step 4: Simplify right side
    380,664.81x = 128,579,325,587.24
  5. Step 5: Solve for x
    x = 128,579,325,587.24/380,664.81
  6. Step 6: Final answer
    x = 337,775.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.