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Finding the Fourth Proportional to 317,309.10, 475,963.65 and 303,312.30

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Solution

The fourth proportional to 317,309.10, 475,963.65 and 303,312.30 is: 454,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,309.10 : 475,963.65 = 303,312.30 : x
  2. Step 2: Convert to fraction form
    317,309.10/475,963.65 = 303,312.30/x
  3. Step 3: Cross multiply
    317,309.10x = 475,963.65 × 303,312.30
  4. Step 4: Simplify right side
    317,309.10x = 144,365,629,397.90
  5. Step 5: Solve for x
    x = 144,365,629,397.90/317,309.10
  6. Step 6: Final answer
    x = 454,968.45

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Similar ratio
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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.