Home / 260,384.80-390,573.06-82,889.23

Finding the Fourth Proportional to 260,384.80, 390,573.06 and 82,889.23

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Solution

The fourth proportional to 260,384.80, 390,573.06 and 82,889.23 is: 124,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,384.80 : 390,573.06 = 82,889.23 : x
  2. Step 2: Convert to fraction form
    260,384.80/390,573.06 = 82,889.23/x
  3. Step 3: Cross multiply
    260,384.80x = 390,573.06 × 82,889.23
  4. Step 4: Simplify right side
    260,384.80x = 32,374,300,202.14
  5. Step 5: Solve for x
    x = 32,374,300,202.14/260,384.80
  6. Step 6: Final answer
    x = 124,332.53

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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.