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Finding the Fourth Proportional to 291,965, 437,975.58 and 134,237.48

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Solution

The fourth proportional to 291,965, 437,975.58 and 134,237.48 is: 201,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,965 : 437,975.58 = 134,237.48 : x
  2. Step 2: Convert to fraction form
    291,965/437,975.58 = 134,237.48/x
  3. Step 3: Cross multiply
    291,965x = 437,975.58 × 134,237.48
  4. Step 4: Simplify right side
    291,965x = 58,792,738,160.74
  5. Step 5: Solve for x
    x = 58,792,738,160.74/291,965
  6. Step 6: Final answer
    x = 201,369.13

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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.