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Finding the Fourth Proportional to 612,328.80, 918,510.46 and 169,096.80

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Solution

The fourth proportional to 612,328.80, 918,510.46 and 169,096.80 is: 253,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,328.80 : 918,510.46 = 169,096.80 : x
  2. Step 2: Convert to fraction form
    612,328.80/918,510.46 = 169,096.80/x
  3. Step 3: Cross multiply
    612,328.80x = 918,510.46 × 169,096.80
  4. Step 4: Simplify right side
    612,328.80x = 155,317,179,552.53
  5. Step 5: Solve for x
    x = 155,317,179,552.53/612,328.80
  6. Step 6: Final answer
    x = 253,649.97

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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.