Home / 421,983.22-633,040.44-141,434.86

Finding the Fourth Proportional to 421,983.22, 633,040.44 and 141,434.86

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Solution

The fourth proportional to 421,983.22, 633,040.44 and 141,434.86 is: 212,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,983.22 : 633,040.44 = 141,434.86 : x
  2. Step 2: Convert to fraction form
    421,983.22/633,040.44 = 141,434.86/x
  3. Step 3: Cross multiply
    421,983.22x = 633,040.44 × 141,434.86
  4. Step 4: Simplify right side
    421,983.22x = 89,533,985,477.49
  5. Step 5: Solve for x
    x = 89,533,985,477.49/421,983.22
  6. Step 6: Final answer
    x = 212,174.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.