Home / 328,975.20-493,462.80-118,634.40

Finding the Fourth Proportional to 328,975.20, 493,462.80 and 118,634.40

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Solution

The fourth proportional to 328,975.20, 493,462.80 and 118,634.40 is: 177,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,975.20 : 493,462.80 = 118,634.40 : x
  2. Step 2: Convert to fraction form
    328,975.20/493,462.80 = 118,634.40/x
  3. Step 3: Cross multiply
    328,975.20x = 493,462.80 × 118,634.40
  4. Step 4: Simplify right side
    328,975.20x = 58,541,663,200.32
  5. Step 5: Solve for x
    x = 58,541,663,200.32/328,975.20
  6. Step 6: Final answer
    x = 177,951.60

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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.