Home / 243,631.40-365,447.10-221,858.60

Finding the Fourth Proportional to 243,631.40, 365,447.10 and 221,858.60

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Solution

The fourth proportional to 243,631.40, 365,447.10 and 221,858.60 is: 332,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,631.40 : 365,447.10 = 221,858.60 : x
  2. Step 2: Convert to fraction form
    243,631.40/365,447.10 = 221,858.60/x
  3. Step 3: Cross multiply
    243,631.40x = 365,447.10 × 221,858.60
  4. Step 4: Simplify right side
    243,631.40x = 81,077,581,980.06
  5. Step 5: Solve for x
    x = 81,077,581,980.06/243,631.40
  6. Step 6: Final answer
    x = 332,787.90

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1.5x scale

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.