Home / 278,855.04-384,834.64-158,019.76

Finding the Fourth Proportional to 278,855.04, 384,834.64 and 158,019.76

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Solution

The fourth proportional to 278,855.04, 384,834.64 and 158,019.76 is: 218,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,855.04 : 384,834.64 = 158,019.76 : x
  2. Step 2: Convert to fraction form
    278,855.04/384,834.64 = 158,019.76/x
  3. Step 3: Cross multiply
    278,855.04x = 384,834.64 × 158,019.76
  4. Step 4: Simplify right side
    278,855.04x = 60,811,477,452.49
  5. Step 5: Solve for x
    x = 60,811,477,452.49/278,855.04
  6. Step 6: Final answer
    x = 218,075.59

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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.