Home / 282,354.06-389,649.03-155,037.78

Finding the Fourth Proportional to 282,354.06, 389,649.03 and 155,037.78

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Solution

The fourth proportional to 282,354.06, 389,649.03 and 155,037.78 is: 213,952.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,354.06 : 389,649.03 = 155,037.78 : x
  2. Step 2: Convert to fraction form
    282,354.06/389,649.03 = 155,037.78/x
  3. Step 3: Cross multiply
    282,354.06x = 389,649.03 × 155,037.78
  4. Step 4: Simplify right side
    282,354.06x = 60,410,320,590.35
  5. Step 5: Solve for x
    x = 60,410,320,590.35/282,354.06
  6. Step 6: Final answer
    x = 213,952.37

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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.