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Finding the Fourth Proportional to 162,455.61, 243,722.30 and 82,293.69

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Solution

The fourth proportional to 162,455.61, 243,722.30 and 82,293.69 is: 123,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,455.61 : 243,722.30 = 82,293.69 : x
  2. Step 2: Convert to fraction form
    162,455.61/243,722.30 = 82,293.69/x
  3. Step 3: Cross multiply
    162,455.61x = 243,722.30 × 82,293.69
  4. Step 4: Simplify right side
    162,455.61x = 20,056,806,990.82
  5. Step 5: Solve for x
    x = 20,056,806,990.82/162,455.61
  6. Step 6: Final answer
    x = 123,460.23

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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.