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Finding the Fourth Proportional to 554,557.98, 831,837.12 and 155,257.57

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Solution

The fourth proportional to 554,557.98, 831,837.12 and 155,257.57 is: 232,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,557.98 : 831,837.12 = 155,257.57 : x
  2. Step 2: Convert to fraction form
    554,557.98/831,837.12 = 155,257.57/x
  3. Step 3: Cross multiply
    554,557.98x = 831,837.12 × 155,257.57
  4. Step 4: Simplify right side
    554,557.98x = 129,149,009,887.00
  5. Step 5: Solve for x
    x = 129,149,009,887.00/554,557.98
  6. Step 6: Final answer
    x = 232,886.40

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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.