Home / 278,559.08-384,772.12-230,355.71

Finding the Fourth Proportional to 278,559.08, 384,772.12 and 230,355.71

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Solution

The fourth proportional to 278,559.08, 384,772.12 and 230,355.71 is: 318,189.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,559.08 : 384,772.12 = 230,355.71 : x
  2. Step 2: Convert to fraction form
    278,559.08/384,772.12 = 230,355.71/x
  3. Step 3: Cross multiply
    278,559.08x = 384,772.12 × 230,355.71
  4. Step 4: Simplify right side
    278,559.08x = 88,634,455,852.74
  5. Step 5: Solve for x
    x = 88,634,455,852.74/278,559.08
  6. Step 6: Final answer
    x = 318,189.07

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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.