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Finding the Fourth Proportional to 612,289.33, 918,417.02 and 163,014.05

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Solution

The fourth proportional to 612,289.33, 918,417.02 and 163,014.05 is: 244,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,289.33 : 918,417.02 = 163,014.05 : x
  2. Step 2: Convert to fraction form
    612,289.33/918,417.02 = 163,014.05/x
  3. Step 3: Cross multiply
    612,289.33x = 918,417.02 × 163,014.05
  4. Step 4: Simplify right side
    612,289.33x = 149,714,879,500.10
  5. Step 5: Solve for x
    x = 149,714,879,500.10/612,289.33
  6. Step 6: Final answer
    x = 244,516.56

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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.