Home / 399,726.08-551,556.51-236,359.88

Finding the Fourth Proportional to 399,726.08, 551,556.51 and 236,359.88

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Solution

The fourth proportional to 399,726.08, 551,556.51 and 236,359.88 is: 326,137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,726.08 : 551,556.51 = 236,359.88 : x
  2. Step 2: Convert to fraction form
    399,726.08/551,556.51 = 236,359.88/x
  3. Step 3: Cross multiply
    399,726.08x = 551,556.51 × 236,359.88
  4. Step 4: Simplify right side
    399,726.08x = 130,365,830,516.82
  5. Step 5: Solve for x
    x = 130,365,830,516.82/399,726.08
  6. Step 6: Final answer
    x = 326,137.92

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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.