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Finding the Fourth Proportional to 150,478.58, 207,675.30 and 85,957.47

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Solution

The fourth proportional to 150,478.58, 207,675.30 and 85,957.47 is: 118,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,478.58 : 207,675.30 = 85,957.47 : x
  2. Step 2: Convert to fraction form
    150,478.58/207,675.30 = 85,957.47/x
  3. Step 3: Cross multiply
    150,478.58x = 207,675.30 × 85,957.47
  4. Step 4: Simplify right side
    150,478.58x = 17,851,243,369.49
  5. Step 5: Solve for x
    x = 17,851,243,369.49/150,478.58
  6. Step 6: Final answer
    x = 118,629.80

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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.