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Finding the Fourth Proportional to 612,530.52, 918,722.76 and 163,285.08

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Solution

The fourth proportional to 612,530.52, 918,722.76 and 163,285.08 is: 244,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,530.52 : 918,722.76 = 163,285.08 : x
  2. Step 2: Convert to fraction form
    612,530.52/918,722.76 = 163,285.08/x
  3. Step 3: Cross multiply
    612,530.52x = 918,722.76 × 163,285.08
  4. Step 4: Simplify right side
    612,530.52x = 150,013,719,364.42
  5. Step 5: Solve for x
    x = 150,013,719,364.42/612,530.52
  6. Step 6: Final answer
    x = 244,908.15

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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.