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Finding the Fourth Proportional to 317,807.67, 438,215.18 and 202,935.27

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Solution

The fourth proportional to 317,807.67, 438,215.18 and 202,935.27 is: 279,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,807.67 : 438,215.18 = 202,935.27 : x
  2. Step 2: Convert to fraction form
    317,807.67/438,215.18 = 202,935.27/x
  3. Step 3: Cross multiply
    317,807.67x = 438,215.18 × 202,935.27
  4. Step 4: Simplify right side
    317,807.67x = 88,929,314,856.72
  5. Step 5: Solve for x
    x = 88,929,314,856.72/317,807.67
  6. Step 6: Final answer
    x = 279,821.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.