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Finding the Fourth Proportional to 615,350.64, 922,721.88 and 188,784.38

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Solution

The fourth proportional to 615,350.64, 922,721.88 and 188,784.38 is: 283,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,350.64 : 922,721.88 = 188,784.38 : x
  2. Step 2: Convert to fraction form
    615,350.64/922,721.88 = 188,784.38/x
  3. Step 3: Cross multiply
    615,350.64x = 922,721.88 × 188,784.38
  4. Step 4: Simplify right side
    615,350.64x = 174,195,478,028.23
  5. Step 5: Solve for x
    x = 174,195,478,028.23/615,350.64
  6. Step 6: Final answer
    x = 283,083.28

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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.