Home / 399,669.36-551,537.04-218,377.32

Finding the Fourth Proportional to 399,669.36, 551,537.04 and 218,377.32

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Solution

The fourth proportional to 399,669.36, 551,537.04 and 218,377.32 is: 301,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,669.36 : 551,537.04 = 218,377.32 : x
  2. Step 2: Convert to fraction form
    399,669.36/551,537.04 = 218,377.32/x
  3. Step 3: Cross multiply
    399,669.36x = 551,537.04 × 218,377.32
  4. Step 4: Simplify right side
    399,669.36x = 120,443,180,675.93
  5. Step 5: Solve for x
    x = 120,443,180,675.93/399,669.36
  6. Step 6: Final answer
    x = 301,357.05

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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.