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Finding the Fourth Proportional to 388,812.69, 536,572.80 and 227,652.66

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Solution

The fourth proportional to 388,812.69, 536,572.80 and 227,652.66 is: 314,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,812.69 : 536,572.80 = 227,652.66 : x
  2. Step 2: Convert to fraction form
    388,812.69/536,572.80 = 227,652.66/x
  3. Step 3: Cross multiply
    388,812.69x = 536,572.80 × 227,652.66
  4. Step 4: Simplify right side
    388,812.69x = 122,152,225,203.65
  5. Step 5: Solve for x
    x = 122,152,225,203.65/388,812.69
  6. Step 6: Final answer
    x = 314,167.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.