Home / 279,604.86-385,859.07-152,280.33

Finding the Fourth Proportional to 279,604.86, 385,859.07 and 152,280.33

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Solution

The fourth proportional to 279,604.86, 385,859.07 and 152,280.33 is: 210,149.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,604.86 : 385,859.07 = 152,280.33 : x
  2. Step 2: Convert to fraction form
    279,604.86/385,859.07 = 152,280.33/x
  3. Step 3: Cross multiply
    279,604.86x = 385,859.07 × 152,280.33
  4. Step 4: Simplify right side
    279,604.86x = 58,758,746,513.09
  5. Step 5: Solve for x
    x = 58,758,746,513.09/279,604.86
  6. Step 6: Final answer
    x = 210,149.23

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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.