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Finding the Fourth Proportional to 308,045.60, 462,003.60 and 130,558.40

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Solution

The fourth proportional to 308,045.60, 462,003.60 and 130,558.40 is: 195,810.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,045.60 : 462,003.60 = 130,558.40 : x
  2. Step 2: Convert to fraction form
    308,045.60/462,003.60 = 130,558.40/x
  3. Step 3: Cross multiply
    308,045.60x = 462,003.60 × 130,558.40
  4. Step 4: Simplify right side
    308,045.60x = 60,318,450,810.24
  5. Step 5: Solve for x
    x = 60,318,450,810.24/308,045.60
  6. Step 6: Final answer
    x = 195,810.14

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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.