Home / 421,788.07-632,682.11-185,132.80

Finding the Fourth Proportional to 421,788.07, 632,682.11 and 185,132.80

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Solution

The fourth proportional to 421,788.07, 632,682.11 and 185,132.80 is: 277,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,788.07 : 632,682.11 = 185,132.80 : x
  2. Step 2: Convert to fraction form
    421,788.07/632,682.11 = 185,132.80/x
  3. Step 3: Cross multiply
    421,788.07x = 632,682.11 × 185,132.80
  4. Step 4: Simplify right side
    421,788.07x = 117,130,210,534.21
  5. Step 5: Solve for x
    x = 117,130,210,534.21/421,788.07
  6. Step 6: Final answer
    x = 277,699.20

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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.