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Finding the Fourth Proportional to 325,304.60, 487,956.90 and 103,688.60

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Solution

The fourth proportional to 325,304.60, 487,956.90 and 103,688.60 is: 155,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,304.60 : 487,956.90 = 103,688.60 : x
  2. Step 2: Convert to fraction form
    325,304.60/487,956.90 = 103,688.60/x
  3. Step 3: Cross multiply
    325,304.60x = 487,956.90 × 103,688.60
  4. Step 4: Simplify right side
    325,304.60x = 50,595,567,821.34
  5. Step 5: Solve for x
    x = 50,595,567,821.34/325,304.60
  6. Step 6: Final answer
    x = 155,532.90

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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.