Home / 345,426.51-518,158.26-108,787.62

Finding the Fourth Proportional to 345,426.51, 518,158.26 and 108,787.62

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Solution

The fourth proportional to 345,426.51, 518,158.26 and 108,787.62 is: 163,187.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,426.51 : 518,158.26 = 108,787.62 : x
  2. Step 2: Convert to fraction form
    345,426.51/518,158.26 = 108,787.62/x
  3. Step 3: Cross multiply
    345,426.51x = 518,158.26 × 108,787.62
  4. Step 4: Simplify right side
    345,426.51x = 56,369,203,888.74
  5. Step 5: Solve for x
    x = 56,369,203,888.74/345,426.51
  6. Step 6: Final answer
    x = 163,187.25

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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.