Home / 403,136.14-556,350.84-231,082.72

Finding the Fourth Proportional to 403,136.14, 556,350.84 and 231,082.72

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Solution

The fourth proportional to 403,136.14, 556,350.84 and 231,082.72 is: 318,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,136.14 : 556,350.84 = 231,082.72 : x
  2. Step 2: Convert to fraction form
    403,136.14/556,350.84 = 231,082.72/x
  3. Step 3: Cross multiply
    403,136.14x = 556,350.84 × 231,082.72
  4. Step 4: Simplify right side
    403,136.14x = 128,563,065,381.49
  5. Step 5: Solve for x
    x = 128,563,065,381.49/403,136.14
  6. Step 6: Final answer
    x = 318,907.32

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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.