Home / 330,288.86-495,306.51-140,628.98

Finding the Fourth Proportional to 330,288.86, 495,306.51 and 140,628.98

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Solution

The fourth proportional to 330,288.86, 495,306.51 and 140,628.98 is: 210,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,288.86 : 495,306.51 = 140,628.98 : x
  2. Step 2: Convert to fraction form
    330,288.86/495,306.51 = 140,628.98/x
  3. Step 3: Cross multiply
    330,288.86x = 495,306.51 × 140,628.98
  4. Step 4: Simplify right side
    330,288.86x = 69,654,446,812.13
  5. Step 5: Solve for x
    x = 69,654,446,812.13/330,288.86
  6. Step 6: Final answer
    x = 210,889.49

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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.