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Finding the Fourth Proportional to 540,611.92, 811,032.36 and 161,562.16

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Solution

The fourth proportional to 540,611.92, 811,032.36 and 161,562.16 is: 242,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,611.92 : 811,032.36 = 161,562.16 : x
  2. Step 2: Convert to fraction form
    540,611.92/811,032.36 = 161,562.16/x
  3. Step 3: Cross multiply
    540,611.92x = 811,032.36 × 161,562.16
  4. Step 4: Simplify right side
    540,611.92x = 131,032,139,911.50
  5. Step 5: Solve for x
    x = 131,032,139,911.50/540,611.92
  6. Step 6: Final answer
    x = 242,377.45

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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.