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Finding the Fourth Proportional to 256,557.85, 384,673.77 and 225,031.22

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Solution

The fourth proportional to 256,557.85, 384,673.77 and 225,031.22 is: 337,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,557.85 : 384,673.77 = 225,031.22 : x
  2. Step 2: Convert to fraction form
    256,557.85/384,673.77 = 225,031.22/x
  3. Step 3: Cross multiply
    256,557.85x = 384,673.77 × 225,031.22
  4. Step 4: Simplify right side
    256,557.85x = 86,563,607,765.10
  5. Step 5: Solve for x
    x = 86,563,607,765.10/256,557.85
  6. Step 6: Final answer
    x = 337,403.86

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1.5x scale

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.