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Finding the Fourth Proportional to 538,473.80, 808,366.80 and 272,097.20

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Solution

The fourth proportional to 538,473.80, 808,366.80 and 272,097.20 is: 408,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,473.80 : 808,366.80 = 272,097.20 : x
  2. Step 2: Convert to fraction form
    538,473.80/808,366.80 = 272,097.20/x
  3. Step 3: Cross multiply
    538,473.80x = 808,366.80 × 272,097.20
  4. Step 4: Simplify right side
    538,473.80x = 219,954,342,852.96
  5. Step 5: Solve for x
    x = 219,954,342,852.96/538,473.80
  6. Step 6: Final answer
    x = 408,477.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.