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Finding the Fourth Proportional to 207,535.72, 309,583.92 and 201,417.59

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Solution

The fourth proportional to 207,535.72, 309,583.92 and 201,417.59 is: 300,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,535.72 : 309,583.92 = 201,417.59 : x
  2. Step 2: Convert to fraction form
    207,535.72/309,583.92 = 201,417.59/x
  3. Step 3: Cross multiply
    207,535.72x = 309,583.92 × 201,417.59
  4. Step 4: Simplify right side
    207,535.72x = 62,355,646,857.02
  5. Step 5: Solve for x
    x = 62,355,646,857.02/207,535.72
  6. Step 6: Final answer
    x = 300,457.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.