Home / 421,365.24-632,110.91-155,105.55

Finding the Fourth Proportional to 421,365.24, 632,110.91 and 155,105.55

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Solution

The fourth proportional to 421,365.24, 632,110.91 and 155,105.55 is: 232,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,365.24 : 632,110.91 = 155,105.55 : x
  2. Step 2: Convert to fraction form
    421,365.24/632,110.91 = 155,105.55/x
  3. Step 3: Cross multiply
    421,365.24x = 632,110.91 × 155,105.55
  4. Step 4: Simplify right side
    421,365.24x = 98,043,909,581.02
  5. Step 5: Solve for x
    x = 98,043,909,581.02/421,365.24
  6. Step 6: Final answer
    x = 232,681.53

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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.