Home / 260,169.66-390,280.50-70,633.08

Finding the Fourth Proportional to 260,169.66, 390,280.50 and 70,633.08

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Solution

The fourth proportional to 260,169.66, 390,280.50 and 70,633.08 is: 105,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,169.66 : 390,280.50 = 70,633.08 : x
  2. Step 2: Convert to fraction form
    260,169.66/390,280.50 = 70,633.08/x
  3. Step 3: Cross multiply
    260,169.66x = 390,280.50 × 70,633.08
  4. Step 4: Simplify right side
    260,169.66x = 27,566,713,778.94
  5. Step 5: Solve for x
    x = 27,566,713,778.94/260,169.66
  6. Step 6: Final answer
    x = 105,956.68

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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.