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Finding the Fourth Proportional to 344,709.66, 475,665.17 and 215,623.20

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Solution

The fourth proportional to 344,709.66, 475,665.17 and 215,623.20 is: 297,538.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,709.66 : 475,665.17 = 215,623.20 : x
  2. Step 2: Convert to fraction form
    344,709.66/475,665.17 = 215,623.20/x
  3. Step 3: Cross multiply
    344,709.66x = 475,665.17 × 215,623.20
  4. Step 4: Simplify right side
    344,709.66x = 102,564,445,005.83
  5. Step 5: Solve for x
    x = 102,564,445,005.83/344,709.66
  6. Step 6: Final answer
    x = 297,538.64

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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.