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Finding the Fourth Proportional to 257,635.60, 355,537.28 and 157,033.60

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Solution

The fourth proportional to 257,635.60, 355,537.28 and 157,033.60 is: 216,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,635.60 : 355,537.28 = 157,033.60 : x
  2. Step 2: Convert to fraction form
    257,635.60/355,537.28 = 157,033.60/x
  3. Step 3: Cross multiply
    257,635.60x = 355,537.28 × 157,033.60
  4. Step 4: Simplify right side
    257,635.60x = 55,831,299,012.61
  5. Step 5: Solve for x
    x = 55,831,299,012.61/257,635.60
  6. Step 6: Final answer
    x = 216,706.46

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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.