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Finding the Fourth Proportional to 388,644.76, 536,368.02 and 227,490.04

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Solution

The fourth proportional to 388,644.76, 536,368.02 and 227,490.04 is: 313,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,644.76 : 536,368.02 = 227,490.04 : x
  2. Step 2: Convert to fraction form
    388,644.76/536,368.02 = 227,490.04/x
  3. Step 3: Cross multiply
    388,644.76x = 536,368.02 × 227,490.04
  4. Step 4: Simplify right side
    388,644.76x = 122,018,382,324.52
  5. Step 5: Solve for x
    x = 122,018,382,324.52/388,644.76
  6. Step 6: Final answer
    x = 313,958.65

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1.5x scale

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.