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Finding the Fourth Proportional to 615,954.24, 923,957.28 and 211,425.12

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Solution

The fourth proportional to 615,954.24, 923,957.28 and 211,425.12 is: 317,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,954.24 : 923,957.28 = 211,425.12 : x
  2. Step 2: Convert to fraction form
    615,954.24/923,957.28 = 211,425.12/x
  3. Step 3: Cross multiply
    615,954.24x = 923,957.28 × 211,425.12
  4. Step 4: Simplify right side
    615,954.24x = 195,347,778,798.87
  5. Step 5: Solve for x
    x = 195,347,778,798.87/615,954.24
  6. Step 6: Final answer
    x = 317,146.58

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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.