Home / 306,721.10-460,081.65-156,911.60

Finding the Fourth Proportional to 306,721.10, 460,081.65 and 156,911.60

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Solution

The fourth proportional to 306,721.10, 460,081.65 and 156,911.60 is: 235,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,721.10 : 460,081.65 = 156,911.60 : x
  2. Step 2: Convert to fraction form
    306,721.10/460,081.65 = 156,911.60/x
  3. Step 3: Cross multiply
    306,721.10x = 460,081.65 × 156,911.60
  4. Step 4: Simplify right side
    306,721.10x = 72,192,147,832.14
  5. Step 5: Solve for x
    x = 72,192,147,832.14/306,721.10
  6. Step 6: Final answer
    x = 235,367.40

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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.