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Finding the Fourth Proportional to 243,066.66, 364,636.44 and 85,267.32

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Solution

The fourth proportional to 243,066.66, 364,636.44 and 85,267.32 is: 127,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,066.66 : 364,636.44 = 85,267.32 : x
  2. Step 2: Convert to fraction form
    243,066.66/364,636.44 = 85,267.32/x
  3. Step 3: Cross multiply
    243,066.66x = 364,636.44 × 85,267.32
  4. Step 4: Simplify right side
    243,066.66x = 31,091,572,013.14
  5. Step 5: Solve for x
    x = 31,091,572,013.14/243,066.66
  6. Step 6: Final answer
    x = 127,913.77

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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.