Home / 318,431.36-477,631.46-118,736.17

Finding the Fourth Proportional to 318,431.36, 477,631.46 and 118,736.17

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Solution

The fourth proportional to 318,431.36, 477,631.46 and 118,736.17 is: 178,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,431.36 : 477,631.46 = 118,736.17 : x
  2. Step 2: Convert to fraction form
    318,431.36/477,631.46 = 118,736.17/x
  3. Step 3: Cross multiply
    318,431.36x = 477,631.46 × 118,736.17
  4. Step 4: Simplify right side
    318,431.36x = 56,712,129,334.67
  5. Step 5: Solve for x
    x = 56,712,129,334.67/318,431.36
  6. Step 6: Final answer
    x = 178,098.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.