Home / 260,042.26-390,111.63-82,501.30

Finding the Fourth Proportional to 260,042.26, 390,111.63 and 82,501.30

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Solution

The fourth proportional to 260,042.26, 390,111.63 and 82,501.30 is: 123,767.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,042.26 : 390,111.63 = 82,501.30 : x
  2. Step 2: Convert to fraction form
    260,042.26/390,111.63 = 82,501.30/x
  3. Step 3: Cross multiply
    260,042.26x = 390,111.63 × 82,501.30
  4. Step 4: Simplify right side
    260,042.26x = 32,184,716,620.12
  5. Step 5: Solve for x
    x = 32,184,716,620.12/260,042.26
  6. Step 6: Final answer
    x = 123,767.25

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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.