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Finding the Fourth Proportional to 303,314.60, 454,971.90 and 208,836.20

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Solution

The fourth proportional to 303,314.60, 454,971.90 and 208,836.20 is: 313,254.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,314.60 : 454,971.90 = 208,836.20 : x
  2. Step 2: Convert to fraction form
    303,314.60/454,971.90 = 208,836.20/x
  3. Step 3: Cross multiply
    303,314.60x = 454,971.90 × 208,836.20
  4. Step 4: Simplify right side
    303,314.60x = 95,014,602,702.78
  5. Step 5: Solve for x
    x = 95,014,602,702.78/303,314.60
  6. Step 6: Final answer
    x = 313,254.30

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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.