Home / 403,130.55-556,343.13-231,077.14

Finding the Fourth Proportional to 403,130.55, 556,343.13 and 231,077.14

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Solution

The fourth proportional to 403,130.55, 556,343.13 and 231,077.14 is: 318,899.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,130.55 : 556,343.13 = 231,077.14 : x
  2. Step 2: Convert to fraction form
    403,130.55/556,343.13 = 231,077.14/x
  3. Step 3: Cross multiply
    403,130.55x = 556,343.13 × 231,077.14
  4. Step 4: Simplify right side
    403,130.55x = 128,558,178,814.73
  5. Step 5: Solve for x
    x = 128,558,178,814.73/403,130.55
  6. Step 6: Final answer
    x = 318,899.62

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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.