Home / 260,428.28-390,535.50-82,887.62

Finding the Fourth Proportional to 260,428.28, 390,535.50 and 82,887.62

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Solution

The fourth proportional to 260,428.28, 390,535.50 and 82,887.62 is: 124,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,428.28 : 390,535.50 = 82,887.62 : x
  2. Step 2: Convert to fraction form
    260,428.28/390,535.50 = 82,887.62/x
  3. Step 3: Cross multiply
    260,428.28x = 390,535.50 × 82,887.62
  4. Step 4: Simplify right side
    260,428.28x = 32,370,558,120.51
  5. Step 5: Solve for x
    x = 32,370,558,120.51/260,428.28
  6. Step 6: Final answer
    x = 124,297.40

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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.