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Finding the Fourth Proportional to 385,275.03, 531,447.08 and 254,453.48

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Solution

The fourth proportional to 385,275.03, 531,447.08 and 254,453.48 is: 350,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,275.03 : 531,447.08 = 254,453.48 : x
  2. Step 2: Convert to fraction form
    385,275.03/531,447.08 = 254,453.48/x
  3. Step 3: Cross multiply
    385,275.03x = 531,447.08 × 254,453.48
  4. Step 4: Simplify right side
    385,275.03x = 135,228,555,510.57
  5. Step 5: Solve for x
    x = 135,228,555,510.57/385,275.03
  6. Step 6: Final answer
    x = 350,992.26

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1.5x scale

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.