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Finding the Fourth Proportional to 276,009.29, 380,893 and 153,498.96

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Solution

The fourth proportional to 276,009.29, 380,893 and 153,498.96 is: 211,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,009.29 : 380,893 = 153,498.96 : x
  2. Step 2: Convert to fraction form
    276,009.29/380,893 = 153,498.96/x
  3. Step 3: Cross multiply
    276,009.29x = 380,893 × 153,498.96
  4. Step 4: Simplify right side
    276,009.29x = 58,466,677,466.82
  5. Step 5: Solve for x
    x = 58,466,677,466.82/276,009.29
  6. Step 6: Final answer
    x = 211,828.66

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1.5x scale

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.