Home / 380,139.12-524,588.94-210,382.56

Finding the Fourth Proportional to 380,139.12, 524,588.94 and 210,382.56

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Solution

The fourth proportional to 380,139.12, 524,588.94 and 210,382.56 is: 290,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,139.12 : 524,588.94 = 210,382.56 : x
  2. Step 2: Convert to fraction form
    380,139.12/524,588.94 = 210,382.56/x
  3. Step 3: Cross multiply
    380,139.12x = 524,588.94 × 210,382.56
  4. Step 4: Simplify right side
    380,139.12x = 110,364,364,144.89
  5. Step 5: Solve for x
    x = 110,364,364,144.89/380,139.12
  6. Step 6: Final answer
    x = 290,326.25

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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.