Home / 218,802.21-328,203.62-144,255.29

Finding the Fourth Proportional to 218,802.21, 328,203.62 and 144,255.29

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Solution

The fourth proportional to 218,802.21, 328,203.62 and 144,255.29 is: 216,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,802.21 : 328,203.62 = 144,255.29 : x
  2. Step 2: Convert to fraction form
    218,802.21/328,203.62 = 144,255.29/x
  3. Step 3: Cross multiply
    218,802.21x = 328,203.62 × 144,255.29
  4. Step 4: Simplify right side
    218,802.21x = 47,345,106,019.86
  5. Step 5: Solve for x
    x = 47,345,106,019.86/218,802.21
  6. Step 6: Final answer
    x = 216,383.13

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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.