Home / 276,117.18-414,176.31-76,438.14

Finding the Fourth Proportional to 276,117.18, 414,176.31 and 76,438.14

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Solution

The fourth proportional to 276,117.18, 414,176.31 and 76,438.14 is: 114,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,117.18 : 414,176.31 = 76,438.14 : x
  2. Step 2: Convert to fraction form
    276,117.18/414,176.31 = 76,438.14/x
  3. Step 3: Cross multiply
    276,117.18x = 414,176.31 × 76,438.14
  4. Step 4: Simplify right side
    276,117.18x = 31,658,866,768.46
  5. Step 5: Solve for x
    x = 31,658,866,768.46/276,117.18
  6. Step 6: Final answer
    x = 114,657.36

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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.