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Finding the Fourth Proportional to 385,012.22, 577,474.19 and 100,730.22

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Solution

The fourth proportional to 385,012.22, 577,474.19 and 100,730.22 is: 151,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,012.22 : 577,474.19 = 100,730.22 : x
  2. Step 2: Convert to fraction form
    385,012.22/577,474.19 = 100,730.22/x
  3. Step 3: Cross multiply
    385,012.22x = 577,474.19 × 100,730.22
  4. Step 4: Simplify right side
    385,012.22x = 58,169,100,478.19
  5. Step 5: Solve for x
    x = 58,169,100,478.19/385,012.22
  6. Step 6: Final answer
    x = 151,083.78

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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.