Home / 243,821.20-336,457.35-136,372.60

Finding the Fourth Proportional to 243,821.20, 336,457.35 and 136,372.60

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Solution

The fourth proportional to 243,821.20, 336,457.35 and 136,372.60 is: 188,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,821.20 : 336,457.35 = 136,372.60 : x
  2. Step 2: Convert to fraction form
    243,821.20/336,457.35 = 136,372.60/x
  3. Step 3: Cross multiply
    243,821.20x = 336,457.35 × 136,372.60
  4. Step 4: Simplify right side
    243,821.20x = 45,883,563,608.61
  5. Step 5: Solve for x
    x = 45,883,563,608.61/243,821.20
  6. Step 6: Final answer
    x = 188,185.29

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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.