Home / 380,436.18-524,995.38-210,666.66

Finding the Fourth Proportional to 380,436.18, 524,995.38 and 210,666.66

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Solution

The fourth proportional to 380,436.18, 524,995.38 and 210,666.66 is: 290,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,436.18 : 524,995.38 = 210,666.66 : x
  2. Step 2: Convert to fraction form
    380,436.18/524,995.38 = 210,666.66/x
  3. Step 3: Cross multiply
    380,436.18x = 524,995.38 × 210,666.66
  4. Step 4: Simplify right side
    380,436.18x = 110,599,023,220.03
  5. Step 5: Solve for x
    x = 110,599,023,220.03/380,436.18
  6. Step 6: Final answer
    x = 290,716.36

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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.