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Finding the Fourth Proportional to 243,887.15, 365,833.83 and 86,004.89

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Solution

The fourth proportional to 243,887.15, 365,833.83 and 86,004.89 is: 129,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,887.15 : 365,833.83 = 86,004.89 : x
  2. Step 2: Convert to fraction form
    243,887.15/365,833.83 = 86,004.89/x
  3. Step 3: Cross multiply
    243,887.15x = 365,833.83 × 86,004.89
  4. Step 4: Simplify right side
    243,887.15x = 31,463,496,478.26
  5. Step 5: Solve for x
    x = 31,463,496,478.26/243,887.15
  6. Step 6: Final answer
    x = 129,008.43

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1.5x scale

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.