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Finding the Fourth Proportional to 243,235.00, 365,018.58 and 85,463.47

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Solution

The fourth proportional to 243,235.00, 365,018.58 and 85,463.47 is: 128,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,235.00 : 365,018.58 = 85,463.47 : x
  2. Step 2: Convert to fraction form
    243,235.00/365,018.58 = 85,463.47/x
  3. Step 3: Cross multiply
    243,235.00x = 365,018.58 × 85,463.47
  4. Step 4: Simplify right side
    243,235.00x = 31,195,752,208.86
  5. Step 5: Solve for x
    x = 31,195,752,208.86/243,235.00
  6. Step 6: Final answer
    x = 128,253.55

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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.