Home / 387,654.08-581,840.94-198,249.80

Finding the Fourth Proportional to 387,654.08, 581,840.94 and 198,249.80

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Solution

The fourth proportional to 387,654.08, 581,840.94 and 198,249.80 is: 297,558.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,654.08 : 581,840.94 = 198,249.80 : x
  2. Step 2: Convert to fraction form
    387,654.08/581,840.94 = 198,249.80/x
  3. Step 3: Cross multiply
    387,654.08x = 581,840.94 × 198,249.80
  4. Step 4: Simplify right side
    387,654.08x = 115,349,849,986.81
  5. Step 5: Solve for x
    x = 115,349,849,986.81/387,654.08
  6. Step 6: Final answer
    x = 297,558.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.