Home / 218,720.18-301,833.85-118,118.18

Finding the Fourth Proportional to 218,720.18, 301,833.85 and 118,118.18

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Solution

The fourth proportional to 218,720.18, 301,833.85 and 118,118.18 is: 163,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,720.18 : 301,833.85 = 118,118.18 : x
  2. Step 2: Convert to fraction form
    218,720.18/301,833.85 = 118,118.18/x
  3. Step 3: Cross multiply
    218,720.18x = 301,833.85 × 118,118.18
  4. Step 4: Simplify right side
    218,720.18x = 35,652,065,024.39
  5. Step 5: Solve for x
    x = 35,652,065,024.39/218,720.18
  6. Step 6: Final answer
    x = 163,003.09

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1.5x scale

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.