Home / 389,835.16-584,281.80-189,855.88

Finding the Fourth Proportional to 389,835.16, 584,281.80 and 189,855.88

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Solution

The fourth proportional to 389,835.16, 584,281.80 and 189,855.88 is: 284,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,835.16 : 584,281.80 = 189,855.88 : x
  2. Step 2: Convert to fraction form
    389,835.16/584,281.80 = 189,855.88/x
  3. Step 3: Cross multiply
    389,835.16x = 584,281.80 × 189,855.88
  4. Step 4: Simplify right side
    389,835.16x = 110,929,335,306.98
  5. Step 5: Solve for x
    x = 110,929,335,306.98/389,835.16
  6. Step 6: Final answer
    x = 284,554.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.