Home / 328,979.04-493,618.80-178,994.40

Finding the Fourth Proportional to 328,979.04, 493,618.80 and 178,994.40

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Solution

The fourth proportional to 328,979.04, 493,618.80 and 178,994.40 is: 268,573.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,979.04 : 493,618.80 = 178,994.40 : x
  2. Step 2: Convert to fraction form
    328,979.04/493,618.80 = 178,994.40/x
  3. Step 3: Cross multiply
    328,979.04x = 493,618.80 × 178,994.40
  4. Step 4: Simplify right side
    328,979.04x = 88,355,000,934.72
  5. Step 5: Solve for x
    x = 88,355,000,934.72/328,979.04
  6. Step 6: Final answer
    x = 268,573.34

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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.