Home / 351,515.10-485,088.40-190,366.46

Finding the Fourth Proportional to 351,515.10, 485,088.40 and 190,366.46

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Solution

The fourth proportional to 351,515.10, 485,088.40 and 190,366.46 is: 262,704.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,515.10 : 485,088.40 = 190,366.46 : x
  2. Step 2: Convert to fraction form
    351,515.10/485,088.40 = 190,366.46/x
  3. Step 3: Cross multiply
    351,515.10x = 485,088.40 × 190,366.46
  4. Step 4: Simplify right side
    351,515.10x = 92,344,561,495.06
  5. Step 5: Solve for x
    x = 92,344,561,495.06/351,515.10
  6. Step 6: Final answer
    x = 262,704.39

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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.