Home / 385,242.93-531,606.38-215,444.25

Finding the Fourth Proportional to 385,242.93, 531,606.38 and 215,444.25

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Solution

The fourth proportional to 385,242.93, 531,606.38 and 215,444.25 is: 297,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,242.93 : 531,606.38 = 215,444.25 : x
  2. Step 2: Convert to fraction form
    385,242.93/531,606.38 = 215,444.25/x
  3. Step 3: Cross multiply
    385,242.93x = 531,606.38 × 215,444.25
  4. Step 4: Simplify right side
    385,242.93x = 114,531,536,757.09
  5. Step 5: Solve for x
    x = 114,531,536,757.09/385,242.93
  6. Step 6: Final answer
    x = 297,296.92

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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.