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Finding the Fourth Proportional to 262,242.80, 393,655.80 and 162,515.60

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Solution

The fourth proportional to 262,242.80, 393,655.80 and 162,515.60 is: 243,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,242.80 : 393,655.80 = 162,515.60 : x
  2. Step 2: Convert to fraction form
    262,242.80/393,655.80 = 162,515.60/x
  3. Step 3: Cross multiply
    262,242.80x = 393,655.80 × 162,515.60
  4. Step 4: Simplify right side
    262,242.80x = 63,975,208,530.48
  5. Step 5: Solve for x
    x = 63,975,208,530.48/262,242.80
  6. Step 6: Final answer
    x = 243,954.11

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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.