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Finding the Fourth Proportional to 256,556.85, 384,672.27 and 225,030.22

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Solution

The fourth proportional to 256,556.85, 384,672.27 and 225,030.22 is: 337,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,556.85 : 384,672.27 = 225,030.22 : x
  2. Step 2: Convert to fraction form
    256,556.85/384,672.27 = 225,030.22/x
  3. Step 3: Cross multiply
    256,556.85x = 384,672.27 × 225,030.22
  4. Step 4: Simplify right side
    256,556.85x = 86,562,884,584.32
  5. Step 5: Solve for x
    x = 86,562,884,584.32/256,556.85
  6. Step 6: Final answer
    x = 337,402.35

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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.