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Finding the Fourth Proportional to 615,474.36, 923,258.23 and 166,188.69

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Solution

The fourth proportional to 615,474.36, 923,258.23 and 166,188.69 is: 249,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,474.36 : 923,258.23 = 166,188.69 : x
  2. Step 2: Convert to fraction form
    615,474.36/923,258.23 = 166,188.69/x
  3. Step 3: Cross multiply
    615,474.36x = 923,258.23 × 166,188.69
  4. Step 4: Simplify right side
    615,474.36x = 153,435,075,359.95
  5. Step 5: Solve for x
    x = 153,435,075,359.95/615,474.36
  6. Step 6: Final answer
    x = 249,295.64

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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.