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Finding the Fourth Proportional to 612,141.54, 918,211.14 and 162,862.89

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Solution

The fourth proportional to 612,141.54, 918,211.14 and 162,862.89 is: 244,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,141.54 : 918,211.14 = 162,862.89 : x
  2. Step 2: Convert to fraction form
    612,141.54/918,211.14 = 162,862.89/x
  3. Step 3: Cross multiply
    612,141.54x = 918,211.14 × 162,862.89
  4. Step 4: Simplify right side
    612,141.54x = 149,542,519,890.60
  5. Step 5: Solve for x
    x = 149,542,519,890.60/612,141.54
  6. Step 6: Final answer
    x = 244,294.02

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1.5x scale

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.