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Finding the Fourth Proportional to 399,304.49, 551,088.51 and 227,264.28

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Solution

The fourth proportional to 399,304.49, 551,088.51 and 227,264.28 is: 313,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,304.49 : 551,088.51 = 227,264.28 : x
  2. Step 2: Convert to fraction form
    399,304.49/551,088.51 = 227,264.28/x
  3. Step 3: Cross multiply
    399,304.49x = 551,088.51 × 227,264.28
  4. Step 4: Simplify right side
    399,304.49x = 125,242,734,900.83
  5. Step 5: Solve for x
    x = 125,242,734,900.83/399,304.49
  6. Step 6: Final answer
    x = 313,652.21

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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.