Home / 346,960.05-478,778.22-210,975.36

Finding the Fourth Proportional to 346,960.05, 478,778.22 and 210,975.36

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Solution

The fourth proportional to 346,960.05, 478,778.22 and 210,975.36 is: 291,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,960.05 : 478,778.22 = 210,975.36 : x
  2. Step 2: Convert to fraction form
    346,960.05/478,778.22 = 210,975.36/x
  3. Step 3: Cross multiply
    346,960.05x = 478,778.22 × 210,975.36
  4. Step 4: Simplify right side
    346,960.05x = 101,010,407,324.66
  5. Step 5: Solve for x
    x = 101,010,407,324.66/346,960.05
  6. Step 6: Final answer
    x = 291,129.79

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1.5x scale

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.