Home / 421,733.96-632,633.36-122,218.64

Finding the Fourth Proportional to 421,733.96, 632,633.36 and 122,218.64

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Solution

The fourth proportional to 421,733.96, 632,633.36 and 122,218.64 is: 183,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,733.96 : 632,633.36 = 122,218.64 : x
  2. Step 2: Convert to fraction form
    421,733.96/632,633.36 = 122,218.64/x
  3. Step 3: Cross multiply
    421,733.96x = 632,633.36 × 122,218.64
  4. Step 4: Simplify right side
    421,733.96x = 77,319,588,877.83
  5. Step 5: Solve for x
    x = 77,319,588,877.83/421,733.96
  6. Step 6: Final answer
    x = 183,337.36

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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.