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Finding the Fourth Proportional to 320,501.80, 480,831.42 and 110,142.76

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Solution

The fourth proportional to 320,501.80, 480,831.42 and 110,142.76 is: 165,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,501.80 : 480,831.42 = 110,142.76 : x
  2. Step 2: Convert to fraction form
    320,501.80/480,831.42 = 110,142.76/x
  3. Step 3: Cross multiply
    320,501.80x = 480,831.42 × 110,142.76
  4. Step 4: Simplify right side
    320,501.80x = 52,960,099,693.52
  5. Step 5: Solve for x
    x = 52,960,099,693.52/320,501.80
  6. Step 6: Final answer
    x = 165,241.19

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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.