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Finding the Fourth Proportional to 612,573.13, 918,903.48 and 163,291.69

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Solution

The fourth proportional to 612,573.13, 918,903.48 and 163,291.69 is: 244,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,573.13 : 918,903.48 = 163,291.69 : x
  2. Step 2: Convert to fraction form
    612,573.13/918,903.48 = 163,291.69/x
  3. Step 3: Cross multiply
    612,573.13x = 918,903.48 × 163,291.69
  4. Step 4: Simplify right side
    612,573.13x = 150,049,302,196.08
  5. Step 5: Solve for x
    x = 150,049,302,196.08/612,573.13
  6. Step 6: Final answer
    x = 244,949.21

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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.