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Finding the Fourth Proportional to 615,093.60, 922,640.40 and 171,861.60

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Solution

The fourth proportional to 615,093.60, 922,640.40 and 171,861.60 is: 257,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,093.60 : 922,640.40 = 171,861.60 : x
  2. Step 2: Convert to fraction form
    615,093.60/922,640.40 = 171,861.60/x
  3. Step 3: Cross multiply
    615,093.60x = 922,640.40 × 171,861.60
  4. Step 4: Simplify right side
    615,093.60x = 158,566,455,368.64
  5. Step 5: Solve for x
    x = 158,566,455,368.64/615,093.60
  6. Step 6: Final answer
    x = 257,792.40

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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.