Home / 210,289.43-315,438.53-75,362.28

Finding the Fourth Proportional to 210,289.43, 315,438.53 and 75,362.28

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Solution

The fourth proportional to 210,289.43, 315,438.53 and 75,362.28 is: 113,044.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,289.43 : 315,438.53 = 75,362.28 : x
  2. Step 2: Convert to fraction form
    210,289.43/315,438.53 = 75,362.28/x
  3. Step 3: Cross multiply
    210,289.43x = 315,438.53 × 75,362.28
  4. Step 4: Simplify right side
    210,289.43x = 23,772,166,443.84
  5. Step 5: Solve for x
    x = 23,772,166,443.84/210,289.43
  6. Step 6: Final answer
    x = 113,044.99

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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.