Home / 260,331.54-390,051.53-142,085.85

Finding the Fourth Proportional to 260,331.54, 390,051.53 and 142,085.85

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Solution

The fourth proportional to 260,331.54, 390,051.53 and 142,085.85 is: 212,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,331.54 : 390,051.53 = 142,085.85 : x
  2. Step 2: Convert to fraction form
    260,331.54/390,051.53 = 142,085.85/x
  3. Step 3: Cross multiply
    260,331.54x = 390,051.53 × 142,085.85
  4. Step 4: Simplify right side
    260,331.54x = 55,420,803,183.85
  5. Step 5: Solve for x
    x = 55,420,803,183.85/260,331.54
  6. Step 6: Final answer
    x = 212,885.47

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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.