Home / 318,430.11-477,629.59-118,734.92

Finding the Fourth Proportional to 318,430.11, 477,629.59 and 118,734.92

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Solution

The fourth proportional to 318,430.11, 477,629.59 and 118,734.92 is: 178,096.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,430.11 : 477,629.59 = 118,734.92 : x
  2. Step 2: Convert to fraction form
    318,430.11/477,629.59 = 118,734.92/x
  3. Step 3: Cross multiply
    318,430.11x = 477,629.59 × 118,734.92
  4. Step 4: Simplify right side
    318,430.11x = 56,711,311,158.28
  5. Step 5: Solve for x
    x = 56,711,311,158.28/318,430.11
  6. Step 6: Final answer
    x = 178,096.57

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1.5x scale

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.