Home / 212,792.40-318,012.48-200,501.28

Finding the Fourth Proportional to 212,792.40, 318,012.48 and 200,501.28

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Solution

The fourth proportional to 212,792.40, 318,012.48 and 200,501.28 is: 299,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,792.40 : 318,012.48 = 200,501.28 : x
  2. Step 2: Convert to fraction form
    212,792.40/318,012.48 = 200,501.28/x
  3. Step 3: Cross multiply
    212,792.40x = 318,012.48 × 200,501.28
  4. Step 4: Simplify right side
    212,792.40x = 63,761,909,295.97
  5. Step 5: Solve for x
    x = 63,761,909,295.97/212,792.40
  6. Step 6: Final answer
    x = 299,643.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.