Home / 351,034.40-525,015.60-313,863.20

Finding the Fourth Proportional to 351,034.40, 525,015.60 and 313,863.20

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Solution

The fourth proportional to 351,034.40, 525,015.60 and 313,863.20 is: 469,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,034.40 : 525,015.60 = 313,863.20 : x
  2. Step 2: Convert to fraction form
    351,034.40/525,015.60 = 313,863.20/x
  3. Step 3: Cross multiply
    351,034.40x = 525,015.60 × 313,863.20
  4. Step 4: Simplify right side
    351,034.40x = 164,783,076,265.92
  5. Step 5: Solve for x
    x = 164,783,076,265.92/351,034.40
  6. Step 6: Final answer
    x = 469,421.45

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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.