Home / 379,988.80-524,382.24-210,219.28

Finding the Fourth Proportional to 379,988.80, 524,382.24 and 210,219.28

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Solution

The fourth proportional to 379,988.80, 524,382.24 and 210,219.28 is: 290,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,988.80 : 524,382.24 = 210,219.28 : x
  2. Step 2: Convert to fraction form
    379,988.80/524,382.24 = 210,219.28/x
  3. Step 3: Cross multiply
    379,988.80x = 524,382.24 × 210,219.28
  4. Step 4: Simplify right side
    379,988.80x = 110,235,256,937.59
  5. Step 5: Solve for x
    x = 110,235,256,937.59/379,988.80
  6. Step 6: Final answer
    x = 290,101.33

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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.