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Finding the Fourth Proportional to 436,888.56, 655,420.32 and 137,444.48

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Solution

The fourth proportional to 436,888.56, 655,420.32 and 137,444.48 is: 206,194.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,888.56 : 655,420.32 = 137,444.48 : x
  2. Step 2: Convert to fraction form
    436,888.56/655,420.32 = 137,444.48/x
  3. Step 3: Cross multiply
    436,888.56x = 655,420.32 × 137,444.48
  4. Step 4: Simplify right side
    436,888.56x = 90,083,905,063.83
  5. Step 5: Solve for x
    x = 90,083,905,063.83/436,888.56
  6. Step 6: Final answer
    x = 206,194.24

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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.