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Finding the Fourth Proportional to 379,363.52, 523,477.04 and 209,587.52

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Solution

The fourth proportional to 379,363.52, 523,477.04 and 209,587.52 is: 289,206.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,363.52 : 523,477.04 = 209,587.52 : x
  2. Step 2: Convert to fraction form
    379,363.52/523,477.04 = 209,587.52/x
  3. Step 3: Cross multiply
    379,363.52x = 523,477.04 × 209,587.52
  4. Step 4: Simplify right side
    379,363.52x = 109,714,254,590.54
  5. Step 5: Solve for x
    x = 109,714,254,590.54/379,363.52
  6. Step 6: Final answer
    x = 289,206.13

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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.