Home / 320,331.16-480,667.86-207,984.76

Finding the Fourth Proportional to 320,331.16, 480,667.86 and 207,984.76

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Solution

The fourth proportional to 320,331.16, 480,667.86 and 207,984.76 is: 312,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,331.16 : 480,667.86 = 207,984.76 : x
  2. Step 2: Convert to fraction form
    320,331.16/480,667.86 = 207,984.76/x
  3. Step 3: Cross multiply
    320,331.16x = 480,667.86 × 207,984.76
  4. Step 4: Simplify right side
    320,331.16x = 99,971,589,501.81
  5. Step 5: Solve for x
    x = 99,971,589,501.81/320,331.16
  6. Step 6: Final answer
    x = 312,088.24

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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.