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Finding the Fourth Proportional to 223,538.40, 335,307.60 and 105,440.40

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Solution

The fourth proportional to 223,538.40, 335,307.60 and 105,440.40 is: 158,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,538.40 : 335,307.60 = 105,440.40 : x
  2. Step 2: Convert to fraction form
    223,538.40/335,307.60 = 105,440.40/x
  3. Step 3: Cross multiply
    223,538.40x = 335,307.60 × 105,440.40
  4. Step 4: Simplify right side
    223,538.40x = 35,354,967,467.04
  5. Step 5: Solve for x
    x = 35,354,967,467.04/223,538.40
  6. Step 6: Final answer
    x = 158,160.60

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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.