Home / 399,913.94-551,887.80-238,783.07

Finding the Fourth Proportional to 399,913.94, 551,887.80 and 238,783.07

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Solution

The fourth proportional to 399,913.94, 551,887.80 and 238,783.07 is: 329,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,913.94 : 551,887.80 = 238,783.07 : x
  2. Step 2: Convert to fraction form
    399,913.94/551,887.80 = 238,783.07/x
  3. Step 3: Cross multiply
    399,913.94x = 551,887.80 × 238,783.07
  4. Step 4: Simplify right side
    399,913.94x = 131,781,460,420.11
  5. Step 5: Solve for x
    x = 131,781,460,420.11/399,913.94
  6. Step 6: Final answer
    x = 329,524.55

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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.