Home / 385,091.08-531,444.34-213,008.30

Finding the Fourth Proportional to 385,091.08, 531,444.34 and 213,008.30

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Solution

The fourth proportional to 385,091.08, 531,444.34 and 213,008.30 is: 293,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,091.08 : 531,444.34 = 213,008.30 : x
  2. Step 2: Convert to fraction form
    385,091.08/531,444.34 = 213,008.30/x
  3. Step 3: Cross multiply
    385,091.08x = 531,444.34 × 213,008.30
  4. Step 4: Simplify right side
    385,091.08x = 113,202,055,009.98
  5. Step 5: Solve for x
    x = 113,202,055,009.98/385,091.08
  6. Step 6: Final answer
    x = 293,961.77

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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.