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Finding the Fourth Proportional to 320,354.60, 480,768.47 and 151,875.52

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Solution

The fourth proportional to 320,354.60, 480,768.47 and 151,875.52 is: 227,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,354.60 : 480,768.47 = 151,875.52 : x
  2. Step 2: Convert to fraction form
    320,354.60/480,768.47 = 151,875.52/x
  3. Step 3: Cross multiply
    320,354.60x = 480,768.47 × 151,875.52
  4. Step 4: Simplify right side
    320,354.60x = 73,016,959,419.56
  5. Step 5: Solve for x
    x = 73,016,959,419.56/320,354.60
  6. Step 6: Final answer
    x = 227,925.43

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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.