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Finding the Fourth Proportional to 320,283.52, 480,445.06 and 107,070.60

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Solution

The fourth proportional to 320,283.52, 480,445.06 and 107,070.60 is: 160,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,283.52 : 480,445.06 = 107,070.60 : x
  2. Step 2: Convert to fraction form
    320,283.52/480,445.06 = 107,070.60/x
  3. Step 3: Cross multiply
    320,283.52x = 480,445.06 × 107,070.60
  4. Step 4: Simplify right side
    320,283.52x = 51,441,538,439.01
  5. Step 5: Solve for x
    x = 51,441,538,439.01/320,283.52
  6. Step 6: Final answer
    x = 160,612.50

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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.