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Finding the Fourth Proportional to 556,220, 834,355.92 and 162,236

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Solution

The fourth proportional to 556,220, 834,355.92 and 162,236 is: 243,361.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,220 : 834,355.92 = 162,236 : x
  2. Step 2: Convert to fraction form
    556,220/834,355.92 = 162,236/x
  3. Step 3: Cross multiply
    556,220x = 834,355.92 × 162,236
  4. Step 4: Simplify right side
    556,220x = 135,362,567,037.12
  5. Step 5: Solve for x
    x = 135,362,567,037.12/556,220
  6. Step 6: Final answer
    x = 243,361.56

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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.