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Finding the Fourth Proportional to 372,434.34, 513,970.11 and 202,679.22

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Solution

The fourth proportional to 372,434.34, 513,970.11 and 202,679.22 is: 279,703.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,434.34 : 513,970.11 = 202,679.22 : x
  2. Step 2: Convert to fraction form
    372,434.34/513,970.11 = 202,679.22/x
  3. Step 3: Cross multiply
    372,434.34x = 513,970.11 × 202,679.22
  4. Step 4: Simplify right side
    372,434.34x = 104,171,060,998.11
  5. Step 5: Solve for x
    x = 104,171,060,998.11/372,434.34
  6. Step 6: Final answer
    x = 279,703.16

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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.