Home / 328,519.10-492,778.65-223,543.10

Finding the Fourth Proportional to 328,519.10, 492,778.65 and 223,543.10

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Solution

The fourth proportional to 328,519.10, 492,778.65 and 223,543.10 is: 335,314.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,519.10 : 492,778.65 = 223,543.10 : x
  2. Step 2: Convert to fraction form
    328,519.10/492,778.65 = 223,543.10/x
  3. Step 3: Cross multiply
    328,519.10x = 492,778.65 × 223,543.10
  4. Step 4: Simplify right side
    328,519.10x = 110,157,267,034.82
  5. Step 5: Solve for x
    x = 110,157,267,034.82/328,519.10
  6. Step 6: Final answer
    x = 335,314.65

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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.