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Finding the Fourth Proportional to 150,015.45, 207,020.79 and 84,599.07

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Solution

The fourth proportional to 150,015.45, 207,020.79 and 84,599.07 is: 116,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,015.45 : 207,020.79 = 84,599.07 : x
  2. Step 2: Convert to fraction form
    150,015.45/207,020.79 = 84,599.07/x
  3. Step 3: Cross multiply
    150,015.45x = 207,020.79 × 84,599.07
  4. Step 4: Simplify right side
    150,015.45x = 17,513,766,304.67
  5. Step 5: Solve for x
    x = 17,513,766,304.67/150,015.45
  6. Step 6: Final answer
    x = 116,746.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.