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Finding the Fourth Proportional to 243,779.20, 365,668.80 and 222,006.40

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Solution

The fourth proportional to 243,779.20, 365,668.80 and 222,006.40 is: 333,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,779.20 : 365,668.80 = 222,006.40 : x
  2. Step 2: Convert to fraction form
    243,779.20/365,668.80 = 222,006.40/x
  3. Step 3: Cross multiply
    243,779.20x = 365,668.80 × 222,006.40
  4. Step 4: Simplify right side
    243,779.20x = 81,180,813,880.32
  5. Step 5: Solve for x
    x = 81,180,813,880.32/243,779.20
  6. Step 6: Final answer
    x = 333,009.60

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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.