Home / 807,154.12-1,210,800.77-208,110.21

Finding the Fourth Proportional to 807,154.12, 1,210,800.77 and 208,110.21

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Solution

The fourth proportional to 807,154.12, 1,210,800.77 and 208,110.21 is: 312,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,154.12 : 1,210,800.77 = 208,110.21 : x
  2. Step 2: Convert to fraction form
    807,154.12/1,210,800.77 = 208,110.21/x
  3. Step 3: Cross multiply
    807,154.12x = 1,210,800.77 × 208,110.21
  4. Step 4: Simplify right side
    807,154.12x = 251,980,002,512.86
  5. Step 5: Solve for x
    x = 251,980,002,512.86/807,154.12
  6. Step 6: Final answer
    x = 312,183.26

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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.