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Finding the Fourth Proportional to 291,756.72, 437,681.79 and 123,278.70

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Solution

The fourth proportional to 291,756.72, 437,681.79 and 123,278.70 is: 184,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,756.72 : 437,681.79 = 123,278.70 : x
  2. Step 2: Convert to fraction form
    291,756.72/437,681.79 = 123,278.70/x
  3. Step 3: Cross multiply
    291,756.72x = 437,681.79 × 123,278.70
  4. Step 4: Simplify right side
    291,756.72x = 53,956,842,084.87
  5. Step 5: Solve for x
    x = 53,956,842,084.87/291,756.72
  6. Step 6: Final answer
    x = 184,937.79

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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.