Home / 278,315.57-384,075.62-150,991.13

Finding the Fourth Proportional to 278,315.57, 384,075.62 and 150,991.13

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Solution

The fourth proportional to 278,315.57, 384,075.62 and 150,991.13 is: 208,367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,315.57 : 384,075.62 = 150,991.13 : x
  2. Step 2: Convert to fraction form
    278,315.57/384,075.62 = 150,991.13/x
  3. Step 3: Cross multiply
    278,315.57x = 384,075.62 × 150,991.13
  4. Step 4: Simplify right side
    278,315.57x = 57,992,011,869.25
  5. Step 5: Solve for x
    x = 57,992,011,869.25/278,315.57
  6. Step 6: Final answer
    x = 208,367.83

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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.