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Finding the Fourth Proportional to 320,957.44, 442,885.50 and 177,681.60

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Solution

The fourth proportional to 320,957.44, 442,885.50 and 177,681.60 is: 245,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,957.44 : 442,885.50 = 177,681.60 : x
  2. Step 2: Convert to fraction form
    320,957.44/442,885.50 = 177,681.60/x
  3. Step 3: Cross multiply
    320,957.44x = 442,885.50 × 177,681.60
  4. Step 4: Simplify right side
    320,957.44x = 78,692,604,256.80
  5. Step 5: Solve for x
    x = 78,692,604,256.80/320,957.44
  6. Step 6: Final answer
    x = 245,180.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.