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Finding the Fourth Proportional to 325,436.34, 487,971.72 and 222,969.36

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Solution

The fourth proportional to 325,436.34, 487,971.72 and 222,969.36 is: 334,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,436.34 : 487,971.72 = 222,969.36 : x
  2. Step 2: Convert to fraction form
    325,436.34/487,971.72 = 222,969.36/x
  3. Step 3: Cross multiply
    325,436.34x = 487,971.72 × 222,969.36
  4. Step 4: Simplify right side
    325,436.34x = 108,802,742,106.50
  5. Step 5: Solve for x
    x = 108,802,742,106.50/325,436.34
  6. Step 6: Final answer
    x = 334,328.80

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1.5x scale

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.