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Finding the Fourth Proportional to 372,618.36, 514,125.90 and 211,437

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Solution

The fourth proportional to 372,618.36, 514,125.90 and 211,437 is: 291,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,618.36 : 514,125.90 = 211,437 : x
  2. Step 2: Convert to fraction form
    372,618.36/514,125.90 = 211,437/x
  3. Step 3: Cross multiply
    372,618.36x = 514,125.90 × 211,437
  4. Step 4: Simplify right side
    372,618.36x = 108,705,237,918.30
  5. Step 5: Solve for x
    x = 108,705,237,918.30/372,618.36
  6. Step 6: Final answer
    x = 291,733.45

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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.