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Finding the Fourth Proportional to 615,356.60, 923,143.23 and 210,453.62

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Solution

The fourth proportional to 615,356.60, 923,143.23 and 210,453.62 is: 315,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,356.60 : 923,143.23 = 210,453.62 : x
  2. Step 2: Convert to fraction form
    615,356.60/923,143.23 = 210,453.62/x
  3. Step 3: Cross multiply
    615,356.60x = 923,143.23 × 210,453.62
  4. Step 4: Simplify right side
    615,356.60x = 194,278,829,916.28
  5. Step 5: Solve for x
    x = 194,278,829,916.28/615,356.60
  6. Step 6: Final answer
    x = 315,717.47

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1.5x scale

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.