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Finding the Fourth Proportional to 539,931.69, 809,392.70 and 240,249.51

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Solution

The fourth proportional to 539,931.69, 809,392.70 and 240,249.51 is: 360,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,931.69 : 809,392.70 = 240,249.51 : x
  2. Step 2: Convert to fraction form
    539,931.69/809,392.70 = 240,249.51/x
  3. Step 3: Cross multiply
    539,931.69x = 809,392.70 × 240,249.51
  4. Step 4: Simplify right side
    539,931.69x = 194,456,200,173.20
  5. Step 5: Solve for x
    x = 194,456,200,173.20/539,931.69
  6. Step 6: Final answer
    x = 360,149.63

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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.