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Finding the Fourth Proportional to 612,569.88, 918,898.61 and 163,288.44

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Solution

The fourth proportional to 612,569.88, 918,898.61 and 163,288.44 is: 244,944.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,569.88 : 918,898.61 = 163,288.44 : x
  2. Step 2: Convert to fraction form
    612,569.88/918,898.61 = 163,288.44/x
  3. Step 3: Cross multiply
    612,569.88x = 918,898.61 × 163,288.44
  4. Step 4: Simplify right side
    612,569.88x = 150,045,519,728.63
  5. Step 5: Solve for x
    x = 150,045,519,728.63/612,569.88
  6. Step 6: Final answer
    x = 244,944.33

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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.