Home / 276,017.40-380,894.30-153,509.18

Finding the Fourth Proportional to 276,017.40, 380,894.30 and 153,509.18

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Solution

The fourth proportional to 276,017.40, 380,894.30 and 153,509.18 is: 211,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,017.40 : 380,894.30 = 153,509.18 : x
  2. Step 2: Convert to fraction form
    276,017.40/380,894.30 = 153,509.18/x
  3. Step 3: Cross multiply
    276,017.40x = 380,894.30 × 153,509.18
  4. Step 4: Simplify right side
    276,017.40x = 58,470,769,563.32
  5. Step 5: Solve for x
    x = 58,470,769,563.32/276,017.40
  6. Step 6: Final answer
    x = 211,837.26

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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.