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Finding the Fourth Proportional to 388,466.28, 536,124.42 and 227,373.48

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Solution

The fourth proportional to 388,466.28, 536,124.42 and 227,373.48 is: 313,799.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,466.28 : 536,124.42 = 227,373.48 : x
  2. Step 2: Convert to fraction form
    388,466.28/536,124.42 = 227,373.48/x
  3. Step 3: Cross multiply
    388,466.28x = 536,124.42 × 227,373.48
  4. Step 4: Simplify right side
    388,466.28x = 121,900,475,088.38
  5. Step 5: Solve for x
    x = 121,900,475,088.38/388,466.28
  6. Step 6: Final answer
    x = 313,799.37

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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.