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Finding the Fourth Proportional to 326,574.90, 489,880.59 and 101,966.34

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Solution

The fourth proportional to 326,574.90, 489,880.59 and 101,966.34 is: 152,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,574.90 : 489,880.59 = 101,966.34 : x
  2. Step 2: Convert to fraction form
    326,574.90/489,880.59 = 101,966.34/x
  3. Step 3: Cross multiply
    326,574.90x = 489,880.59 × 101,966.34
  4. Step 4: Simplify right side
    326,574.90x = 49,951,330,799.34
  5. Step 5: Solve for x
    x = 49,951,330,799.34/326,574.90
  6. Step 6: Final answer
    x = 152,955.21

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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.