Home / 421,499.20-632,030.10-155,122.60

Finding the Fourth Proportional to 421,499.20, 632,030.10 and 155,122.60

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Solution

The fourth proportional to 421,499.20, 632,030.10 and 155,122.60 is: 232,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,499.20 : 632,030.10 = 155,122.60 : x
  2. Step 2: Convert to fraction form
    421,499.20/632,030.10 = 155,122.60/x
  3. Step 3: Cross multiply
    421,499.20x = 632,030.10 × 155,122.60
  4. Step 4: Simplify right side
    421,499.20x = 98,042,152,390.26
  5. Step 5: Solve for x
    x = 98,042,152,390.26/421,499.20
  6. Step 6: Final answer
    x = 232,603.41

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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.