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Finding the Fourth Proportional to 243,369.42, 364,166 and 143,577.42

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Solution

The fourth proportional to 243,369.42, 364,166 and 143,577.42 is: 214,842.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,369.42 : 364,166 = 143,577.42 : x
  2. Step 2: Convert to fraction form
    243,369.42/364,166 = 143,577.42/x
  3. Step 3: Cross multiply
    243,369.42x = 364,166 × 143,577.42
  4. Step 4: Simplify right side
    243,369.42x = 52,286,014,731.72
  5. Step 5: Solve for x
    x = 52,286,014,731.72/243,369.42
  6. Step 6: Final answer
    x = 214,842.17

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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.