Home / 345,826.41-518,784.98-135,437.01

Finding the Fourth Proportional to 345,826.41, 518,784.98 and 135,437.01

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Solution

The fourth proportional to 345,826.41, 518,784.98 and 135,437.01 is: 203,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,826.41 : 518,784.98 = 135,437.01 : x
  2. Step 2: Convert to fraction form
    345,826.41/518,784.98 = 135,437.01/x
  3. Step 3: Cross multiply
    345,826.41x = 518,784.98 × 135,437.01
  4. Step 4: Simplify right side
    345,826.41x = 70,262,685,846.92
  5. Step 5: Solve for x
    x = 70,262,685,846.92/345,826.41
  6. Step 6: Final answer
    x = 203,173.28

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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.