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Finding the Fourth Proportional to 387,718.02, 581,725.26 and 151,225.56

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Solution

The fourth proportional to 387,718.02, 581,725.26 and 151,225.56 is: 226,896.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,718.02 : 581,725.26 = 151,225.56 : x
  2. Step 2: Convert to fraction form
    387,718.02/581,725.26 = 151,225.56/x
  3. Step 3: Cross multiply
    387,718.02x = 581,725.26 × 151,225.56
  4. Step 4: Simplify right side
    387,718.02x = 87,971,728,209.65
  5. Step 5: Solve for x
    x = 87,971,728,209.65/387,718.02
  6. Step 6: Final answer
    x = 226,896.16

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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.