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Finding the Fourth Proportional to 204,095.70, 306,070.65 and 70,980.30

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Solution

The fourth proportional to 204,095.70, 306,070.65 and 70,980.30 is: 106,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,095.70 : 306,070.65 = 70,980.30 : x
  2. Step 2: Convert to fraction form
    204,095.70/306,070.65 = 70,980.30/x
  3. Step 3: Cross multiply
    204,095.70x = 306,070.65 × 70,980.30
  4. Step 4: Simplify right side
    204,095.70x = 21,724,986,558.20
  5. Step 5: Solve for x
    x = 21,724,986,558.20/204,095.70
  6. Step 6: Final answer
    x = 106,445.10

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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.