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Finding the Fourth Proportional to 317,315.10, 475,972.65 and 303,318.30

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Solution

The fourth proportional to 317,315.10, 475,972.65 and 303,318.30 is: 454,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,315.10 : 475,972.65 = 303,318.30 : x
  2. Step 2: Convert to fraction form
    317,315.10/475,972.65 = 303,318.30/x
  3. Step 3: Cross multiply
    317,315.10x = 475,972.65 × 303,318.30
  4. Step 4: Simplify right side
    317,315.10x = 144,371,215,044.50
  5. Step 5: Solve for x
    x = 144,371,215,044.50/317,315.10
  6. Step 6: Final answer
    x = 454,977.45

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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.