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Finding the Fourth Proportional to 554,737.50, 831,967.05 and 155,274.78

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Solution

The fourth proportional to 554,737.50, 831,967.05 and 155,274.78 is: 232,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,737.50 : 831,967.05 = 155,274.78 : x
  2. Step 2: Convert to fraction form
    554,737.50/831,967.05 = 155,274.78/x
  3. Step 3: Cross multiply
    554,737.50x = 831,967.05 × 155,274.78
  4. Step 4: Simplify right side
    554,737.50x = 129,183,500,656.00
  5. Step 5: Solve for x
    x = 129,183,500,656.00/554,737.50
  6. Step 6: Final answer
    x = 232,873.21

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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.