Home / 345,902.32-477,272.28-210,007.72

Finding the Fourth Proportional to 345,902.32, 477,272.28 and 210,007.72

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Solution

The fourth proportional to 345,902.32, 477,272.28 and 210,007.72 is: 289,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,902.32 : 477,272.28 = 210,007.72 : x
  2. Step 2: Convert to fraction form
    345,902.32/477,272.28 = 210,007.72/x
  3. Step 3: Cross multiply
    345,902.32x = 477,272.28 × 210,007.72
  4. Step 4: Simplify right side
    345,902.32x = 100,230,862,148.82
  5. Step 5: Solve for x
    x = 100,230,862,148.82/345,902.32
  6. Step 6: Final answer
    x = 289,766.38

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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.