Home / 276,001.40-380,922.27-155,152.64

Finding the Fourth Proportional to 276,001.40, 380,922.27 and 155,152.64

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Solution

The fourth proportional to 276,001.40, 380,922.27 and 155,152.64 is: 214,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,001.40 : 380,922.27 = 155,152.64 : x
  2. Step 2: Convert to fraction form
    276,001.40/380,922.27 = 155,152.64/x
  3. Step 3: Cross multiply
    276,001.40x = 380,922.27 × 155,152.64
  4. Step 4: Simplify right side
    276,001.40x = 59,101,095,825.29
  5. Step 5: Solve for x
    x = 59,101,095,825.29/276,001.40
  6. Step 6: Final answer
    x = 214,133.32

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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.