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Finding the Fourth Proportional to 538,911.56, 808,497.20 and 201,955.15

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Solution

The fourth proportional to 538,911.56, 808,497.20 and 201,955.15 is: 302,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,911.56 : 808,497.20 = 201,955.15 : x
  2. Step 2: Convert to fraction form
    538,911.56/808,497.20 = 201,955.15/x
  3. Step 3: Cross multiply
    538,911.56x = 808,497.20 × 201,955.15
  4. Step 4: Simplify right side
    538,911.56x = 163,280,173,300.58
  5. Step 5: Solve for x
    x = 163,280,173,300.58/538,911.56
  6. Step 6: Final answer
    x = 302,981.39

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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.