Home / 403,257.81-556,430.66-231,144.10

Finding the Fourth Proportional to 403,257.81, 556,430.66 and 231,144.10

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Solution

The fourth proportional to 403,257.81, 556,430.66 and 231,144.10 is: 318,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,257.81 : 556,430.66 = 231,144.10 : x
  2. Step 2: Convert to fraction form
    403,257.81/556,430.66 = 231,144.10/x
  3. Step 3: Cross multiply
    403,257.81x = 556,430.66 × 231,144.10
  4. Step 4: Simplify right side
    403,257.81x = 128,615,664,118.11
  5. Step 5: Solve for x
    x = 128,615,664,118.11/403,257.81
  6. Step 6: Final answer
    x = 318,941.53

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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.