Home / 276,011.25-380,897.61-153,505.32

Finding the Fourth Proportional to 276,011.25, 380,897.61 and 153,505.32

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Solution

The fourth proportional to 276,011.25, 380,897.61 and 153,505.32 is: 211,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,011.25 : 380,897.61 = 153,505.32 : x
  2. Step 2: Convert to fraction form
    276,011.25/380,897.61 = 153,505.32/x
  3. Step 3: Cross multiply
    276,011.25x = 380,897.61 × 153,505.32
  4. Step 4: Simplify right side
    276,011.25x = 58,469,809,510.29
  5. Step 5: Solve for x
    x = 58,469,809,510.29/276,011.25
  6. Step 6: Final answer
    x = 211,838.50

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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.