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Finding the Fourth Proportional to 320,424.66, 480,873.54 and 151,945.56

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Solution

The fourth proportional to 320,424.66, 480,873.54 and 151,945.56 is: 228,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,424.66 : 480,873.54 = 151,945.56 : x
  2. Step 2: Convert to fraction form
    320,424.66/480,873.54 = 151,945.56/x
  3. Step 3: Cross multiply
    320,424.66x = 480,873.54 × 151,945.56
  4. Step 4: Simplify right side
    320,424.66x = 73,066,599,894.28
  5. Step 5: Solve for x
    x = 73,066,599,894.28/320,424.66
  6. Step 6: Final answer
    x = 228,030.51

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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.