Home / 318,428.12-477,626.60-118,732.94

Finding the Fourth Proportional to 318,428.12, 477,626.60 and 118,732.94

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Solution

The fourth proportional to 318,428.12, 477,626.60 and 118,732.94 is: 178,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,428.12 : 477,626.60 = 118,732.94 : x
  2. Step 2: Convert to fraction form
    318,428.12/477,626.60 = 118,732.94/x
  3. Step 3: Cross multiply
    318,428.12x = 477,626.60 × 118,732.94
  4. Step 4: Simplify right side
    318,428.12x = 56,710,010,140.00
  5. Step 5: Solve for x
    x = 56,710,010,140.00/318,428.12
  6. Step 6: Final answer
    x = 178,093.60

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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.