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Finding the Fourth Proportional to 330,698.26, 495,994.24 and 90,756.10

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Solution

The fourth proportional to 330,698.26, 495,994.24 and 90,756.10 is: 136,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,698.26 : 495,994.24 = 90,756.10 : x
  2. Step 2: Convert to fraction form
    330,698.26/495,994.24 = 90,756.10/x
  3. Step 3: Cross multiply
    330,698.26x = 495,994.24 × 90,756.10
  4. Step 4: Simplify right side
    330,698.26x = 45,014,499,911.11
  5. Step 5: Solve for x
    x = 45,014,499,911.11/330,698.26
  6. Step 6: Final answer
    x = 136,119.56

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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.