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Finding the Fourth Proportional to 353,006.72, 487,160.16 and 202,152.32

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Solution

The fourth proportional to 353,006.72, 487,160.16 and 202,152.32 is: 278,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,006.72 : 487,160.16 = 202,152.32 : x
  2. Step 2: Convert to fraction form
    353,006.72/487,160.16 = 202,152.32/x
  3. Step 3: Cross multiply
    353,006.72x = 487,160.16 × 202,152.32
  4. Step 4: Simplify right side
    353,006.72x = 98,480,556,555.57
  5. Step 5: Solve for x
    x = 98,480,556,555.57/353,006.72
  6. Step 6: Final answer
    x = 278,976.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.