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Finding the Fourth Proportional to 243,121.59, 364,640.01 and 109,970.65

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Solution

The fourth proportional to 243,121.59, 364,640.01 and 109,970.65 is: 164,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,121.59 : 364,640.01 = 109,970.65 : x
  2. Step 2: Convert to fraction form
    243,121.59/364,640.01 = 109,970.65/x
  3. Step 3: Cross multiply
    243,121.59x = 364,640.01 × 109,970.65
  4. Step 4: Simplify right side
    243,121.59x = 40,099,698,915.71
  5. Step 5: Solve for x
    x = 40,099,698,915.71/243,121.59
  6. Step 6: Final answer
    x = 164,936.81

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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.