Home / 240,281.97-331,581-138,293.28

Finding the Fourth Proportional to 240,281.97, 331,581 and 138,293.28

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Solution

The fourth proportional to 240,281.97, 331,581 and 138,293.28 is: 190,840.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,281.97 : 331,581 = 138,293.28 : x
  2. Step 2: Convert to fraction form
    240,281.97/331,581 = 138,293.28/x
  3. Step 3: Cross multiply
    240,281.97x = 331,581 × 138,293.28
  4. Step 4: Simplify right side
    240,281.97x = 45,855,424,075.68
  5. Step 5: Solve for x
    x = 45,855,424,075.68/240,281.97
  6. Step 6: Final answer
    x = 190,840.05

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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.