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Finding the Fourth Proportional to 615,409.51, 923,526.60 and 216,051.46

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Solution

The fourth proportional to 615,409.51, 923,526.60 and 216,051.46 is: 324,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,409.51 : 923,526.60 = 216,051.46 : x
  2. Step 2: Convert to fraction form
    615,409.51/923,526.60 = 216,051.46/x
  3. Step 3: Cross multiply
    615,409.51x = 923,526.60 × 216,051.46
  4. Step 4: Simplify right side
    615,409.51x = 199,529,270,278.84
  5. Step 5: Solve for x
    x = 199,529,270,278.84/615,409.51
  6. Step 6: Final answer
    x = 324,221.95

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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.