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Finding the Fourth Proportional to 320,378.58, 480,708.54 and 152,020.62

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Solution

The fourth proportional to 320,378.58, 480,708.54 and 152,020.62 is: 228,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,378.58 : 480,708.54 = 152,020.62 : x
  2. Step 2: Convert to fraction form
    320,378.58/480,708.54 = 152,020.62/x
  3. Step 3: Cross multiply
    320,378.58x = 480,708.54 × 152,020.62
  4. Step 4: Simplify right side
    320,378.58x = 73,077,610,290.09
  5. Step 5: Solve for x
    x = 73,077,610,290.09/320,378.58
  6. Step 6: Final answer
    x = 228,097.68

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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.