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Finding the Fourth Proportional to 612,182.16, 918,271.98 and 162,903

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Solution

The fourth proportional to 612,182.16, 918,271.98 and 162,903 is: 244,354.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,182.16 : 918,271.98 = 162,903 : x
  2. Step 2: Convert to fraction form
    612,182.16/918,271.98 = 162,903/x
  3. Step 3: Cross multiply
    612,182.16x = 918,271.98 × 162,903
  4. Step 4: Simplify right side
    612,182.16x = 149,589,260,357.94
  5. Step 5: Solve for x
    x = 149,589,260,357.94/612,182.16
  6. Step 6: Final answer
    x = 244,354.16

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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.