Home / 276,045.32-380,932.70-153,537.06

Finding the Fourth Proportional to 276,045.32, 380,932.70 and 153,537.06

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Solution

The fourth proportional to 276,045.32, 380,932.70 and 153,537.06 is: 211,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,045.32 : 380,932.70 = 153,537.06 : x
  2. Step 2: Convert to fraction form
    276,045.32/380,932.70 = 153,537.06/x
  3. Step 3: Cross multiply
    276,045.32x = 380,932.70 × 153,537.06
  4. Step 4: Simplify right side
    276,045.32x = 58,487,286,815.86
  5. Step 5: Solve for x
    x = 58,487,286,815.86/276,045.32
  6. Step 6: Final answer
    x = 211,875.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.