Home / 276,564.65-381,666.40-155,710.34

Finding the Fourth Proportional to 276,564.65, 381,666.40 and 155,710.34

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Solution

The fourth proportional to 276,564.65, 381,666.40 and 155,710.34 is: 214,884.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,564.65 : 381,666.40 = 155,710.34 : x
  2. Step 2: Convert to fraction form
    276,564.65/381,666.40 = 155,710.34/x
  3. Step 3: Cross multiply
    276,564.65x = 381,666.40 × 155,710.34
  4. Step 4: Simplify right side
    276,564.65x = 59,429,402,612.97
  5. Step 5: Solve for x
    x = 59,429,402,612.97/276,564.65
  6. Step 6: Final answer
    x = 214,884.30

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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.