Home / 260,275.24-390,378.30-73,301.32

Finding the Fourth Proportional to 260,275.24, 390,378.30 and 73,301.32

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Solution

The fourth proportional to 260,275.24, 390,378.30 and 73,301.32 is: 109,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,275.24 : 390,378.30 = 73,301.32 : x
  2. Step 2: Convert to fraction form
    260,275.24/390,378.30 = 73,301.32/x
  3. Step 3: Cross multiply
    260,275.24x = 390,378.30 × 73,301.32
  4. Step 4: Simplify right side
    260,275.24x = 28,615,244,689.36
  5. Step 5: Solve for x
    x = 28,615,244,689.36/260,275.24
  6. Step 6: Final answer
    x = 109,942.25

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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.