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Finding the Fourth Proportional to 554,737, 831,966.30 and 155,274.28

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Solution

The fourth proportional to 554,737, 831,966.30 and 155,274.28 is: 232,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,737 : 831,966.30 = 155,274.28 : x
  2. Step 2: Convert to fraction form
    554,737/831,966.30 = 155,274.28/x
  3. Step 3: Cross multiply
    554,737x = 831,966.30 × 155,274.28
  4. Step 4: Simplify right side
    554,737x = 129,182,968,216.76
  5. Step 5: Solve for x
    x = 129,182,968,216.76/554,737
  6. Step 6: Final answer
    x = 232,872.46

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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.