Home / 399,966.93-551,955.36-218,690.56

Finding the Fourth Proportional to 399,966.93, 551,955.36 and 218,690.56

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Solution

The fourth proportional to 399,966.93, 551,955.36 and 218,690.56 is: 301,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,966.93 : 551,955.36 = 218,690.56 : x
  2. Step 2: Convert to fraction form
    399,966.93/551,955.36 = 218,690.56/x
  3. Step 3: Cross multiply
    399,966.93x = 551,955.36 × 218,690.56
  4. Step 4: Simplify right side
    399,966.93x = 120,707,426,566.34
  5. Step 5: Solve for x
    x = 120,707,426,566.34/399,966.93
  6. Step 6: Final answer
    x = 301,793.52

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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.