Home / 260,378.40-390,226.30-148,110.24

Finding the Fourth Proportional to 260,378.40, 390,226.30 and 148,110.24

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Solution

The fourth proportional to 260,378.40, 390,226.30 and 148,110.24 is: 221,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,378.40 : 390,226.30 = 148,110.24 : x
  2. Step 2: Convert to fraction form
    260,378.40/390,226.30 = 148,110.24/x
  3. Step 3: Cross multiply
    260,378.40x = 390,226.30 × 148,110.24
  4. Step 4: Simplify right side
    260,378.40x = 57,796,510,947.31
  5. Step 5: Solve for x
    x = 57,796,510,947.31/260,378.40
  6. Step 6: Final answer
    x = 221,971.22

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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.