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Finding the Fourth Proportional to 399,304.58, 551,088.64 and 227,264.38

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Solution

The fourth proportional to 399,304.58, 551,088.64 and 227,264.38 is: 313,652.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,304.58 : 551,088.64 = 227,264.38 : x
  2. Step 2: Convert to fraction form
    399,304.58/551,088.64 = 227,264.38/x
  3. Step 3: Cross multiply
    399,304.58x = 551,088.64 × 227,264.38
  4. Step 4: Simplify right side
    399,304.58x = 125,242,818,094.64
  5. Step 5: Solve for x
    x = 125,242,818,094.64/399,304.58
  6. Step 6: Final answer
    x = 313,652.35

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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.