Home / 260,340.05-390,572.37-91,898.18

Finding the Fourth Proportional to 260,340.05, 390,572.37 and 91,898.18

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Solution

The fourth proportional to 260,340.05, 390,572.37 and 91,898.18 is: 137,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,340.05 : 390,572.37 = 91,898.18 : x
  2. Step 2: Convert to fraction form
    260,340.05/390,572.37 = 91,898.18/x
  3. Step 3: Cross multiply
    260,340.05x = 390,572.37 × 91,898.18
  4. Step 4: Simplify right side
    260,340.05x = 35,892,889,961.29
  5. Step 5: Solve for x
    x = 35,892,889,961.29/260,340.05
  6. Step 6: Final answer
    x = 137,869.26

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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.