Home / 399,562.07-551,386.44-218,274.75

Finding the Fourth Proportional to 399,562.07, 551,386.44 and 218,274.75

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Solution

The fourth proportional to 399,562.07, 551,386.44 and 218,274.75 is: 301,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,562.07 : 551,386.44 = 218,274.75 : x
  2. Step 2: Convert to fraction form
    399,562.07/551,386.44 = 218,274.75/x
  3. Step 3: Cross multiply
    399,562.07x = 551,386.44 × 218,274.75
  4. Step 4: Simplify right side
    399,562.07x = 120,353,737,344.39
  5. Step 5: Solve for x
    x = 120,353,737,344.39/399,562.07
  6. Step 6: Final answer
    x = 301,214.12

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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.