Home / 399,855.04-551,799.91-218,567.69

Finding the Fourth Proportional to 399,855.04, 551,799.91 and 218,567.69

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Solution

The fourth proportional to 399,855.04, 551,799.91 and 218,567.69 is: 301,623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,855.04 : 551,799.91 = 218,567.69 : x
  2. Step 2: Convert to fraction form
    399,855.04/551,799.91 = 218,567.69/x
  3. Step 3: Cross multiply
    399,855.04x = 551,799.91 × 218,567.69
  4. Step 4: Simplify right side
    399,855.04x = 120,605,631,670.91
  5. Step 5: Solve for x
    x = 120,605,631,670.91/399,855.04
  6. Step 6: Final answer
    x = 301,623.39

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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.