Home / 403,095.86-556,271.64-221,819.48

Finding the Fourth Proportional to 403,095.86, 556,271.64 and 221,819.48

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Solution

The fourth proportional to 403,095.86, 556,271.64 and 221,819.48 is: 306,110.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,095.86 : 556,271.64 = 221,819.48 : x
  2. Step 2: Convert to fraction form
    403,095.86/556,271.64 = 221,819.48/x
  3. Step 3: Cross multiply
    403,095.86x = 556,271.64 × 221,819.48
  4. Step 4: Simplify right side
    403,095.86x = 123,391,885,923.55
  5. Step 5: Solve for x
    x = 123,391,885,923.55/403,095.86
  6. Step 6: Final answer
    x = 306,110.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.