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Finding the Fourth Proportional to 291,061.86, 436,592.89 and 130,950.78

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Solution

The fourth proportional to 291,061.86, 436,592.89 and 130,950.78 is: 196,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,061.86 : 436,592.89 = 130,950.78 : x
  2. Step 2: Convert to fraction form
    291,061.86/436,592.89 = 130,950.78/x
  3. Step 3: Cross multiply
    291,061.86x = 436,592.89 × 130,950.78
  4. Step 4: Simplify right side
    291,061.86x = 57,172,177,277.82
  5. Step 5: Solve for x
    x = 57,172,177,277.82/291,061.86
  6. Step 6: Final answer
    x = 196,426.21

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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.