Home / 210,420.36-315,651.60-60,664.32

Finding the Fourth Proportional to 210,420.36, 315,651.60 and 60,664.32

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Solution

The fourth proportional to 210,420.36, 315,651.60 and 60,664.32 is: 91,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,420.36 : 315,651.60 = 60,664.32 : x
  2. Step 2: Convert to fraction form
    210,420.36/315,651.60 = 60,664.32/x
  3. Step 3: Cross multiply
    210,420.36x = 315,651.60 × 60,664.32
  4. Step 4: Simplify right side
    210,420.36x = 19,148,789,670.91
  5. Step 5: Solve for x
    x = 19,148,789,670.91/210,420.36
  6. Step 6: Final answer
    x = 91,002.55

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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.