Home / 345,490.12-518,210.22-108,900.52

Finding the Fourth Proportional to 345,490.12, 518,210.22 and 108,900.52

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Solution

The fourth proportional to 345,490.12, 518,210.22 and 108,900.52 is: 163,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,490.12 : 518,210.22 = 108,900.52 : x
  2. Step 2: Convert to fraction form
    345,490.12/518,210.22 = 108,900.52/x
  3. Step 3: Cross multiply
    345,490.12x = 518,210.22 × 108,900.52
  4. Step 4: Simplify right side
    345,490.12x = 56,433,362,427.31
  5. Step 5: Solve for x
    x = 56,433,362,427.31/345,490.12
  6. Step 6: Final answer
    x = 163,342.91

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1.5x scale

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.