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Finding the Fourth Proportional to 218,720.37, 301,834.12 and 118,118.37

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Solution

The fourth proportional to 218,720.37, 301,834.12 and 118,118.37 is: 163,003.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,720.37 : 301,834.12 = 118,118.37 : x
  2. Step 2: Convert to fraction form
    218,720.37/301,834.12 = 118,118.37/x
  3. Step 3: Cross multiply
    218,720.37x = 301,834.12 × 118,118.37
  4. Step 4: Simplify right side
    218,720.37x = 35,652,154,264.78
  5. Step 5: Solve for x
    x = 35,652,154,264.78/218,720.37
  6. Step 6: Final answer
    x = 163,003.36

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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.