Home / 399,324.17-551,070.03-218,037.35

Finding the Fourth Proportional to 399,324.17, 551,070.03 and 218,037.35

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Solution

The fourth proportional to 399,324.17, 551,070.03 and 218,037.35 is: 300,893.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,324.17 : 551,070.03 = 218,037.35 : x
  2. Step 2: Convert to fraction form
    399,324.17/551,070.03 = 218,037.35/x
  3. Step 3: Cross multiply
    399,324.17x = 551,070.03 × 218,037.35
  4. Step 4: Simplify right side
    399,324.17x = 120,153,846,250.27
  5. Step 5: Solve for x
    x = 120,153,846,250.27/399,324.17
  6. Step 6: Final answer
    x = 300,893.00

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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.