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Finding the Fourth Proportional to 554,507.76, 831,814 and 155,148.56

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Solution

The fourth proportional to 554,507.76, 831,814 and 155,148.56 is: 232,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,507.76 : 831,814 = 155,148.56 : x
  2. Step 2: Convert to fraction form
    554,507.76/831,814 = 155,148.56/x
  3. Step 3: Cross multiply
    554,507.76x = 831,814 × 155,148.56
  4. Step 4: Simplify right side
    554,507.76x = 129,054,744,287.84
  5. Step 5: Solve for x
    x = 129,054,744,287.84/554,507.76
  6. Step 6: Final answer
    x = 232,737.49

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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.