Home / 218,997.16-302,216.48-118,395.16

Finding the Fourth Proportional to 218,997.16, 302,216.48 and 118,395.16

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Solution

The fourth proportional to 218,997.16, 302,216.48 and 118,395.16 is: 163,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,997.16 : 302,216.48 = 118,395.16 : x
  2. Step 2: Convert to fraction form
    218,997.16/302,216.48 = 118,395.16/x
  3. Step 3: Cross multiply
    218,997.16x = 302,216.48 × 118,395.16
  4. Step 4: Simplify right side
    218,997.16x = 35,780,966,993.15
  5. Step 5: Solve for x
    x = 35,780,966,993.15/218,997.16
  6. Step 6: Final answer
    x = 163,385.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.