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Finding the Fourth Proportional to 612,090.92, 918,135.18 and 162,812.27

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Solution

The fourth proportional to 612,090.92, 918,135.18 and 162,812.27 is: 244,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,090.92 : 918,135.18 = 162,812.27 : x
  2. Step 2: Convert to fraction form
    612,090.92/918,135.18 = 162,812.27/x
  3. Step 3: Cross multiply
    612,090.92x = 918,135.18 × 162,812.27
  4. Step 4: Simplify right side
    612,090.92x = 149,483,668,231.98
  5. Step 5: Solve for x
    x = 149,483,668,231.98/612,090.92
  6. Step 6: Final answer
    x = 244,218.08

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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.