Home / 276,437.86-381,459.45-155,588.74

Finding the Fourth Proportional to 276,437.86, 381,459.45 and 155,588.74

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Solution

The fourth proportional to 276,437.86, 381,459.45 and 155,588.74 is: 214,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,437.86 : 381,459.45 = 155,588.74 : x
  2. Step 2: Convert to fraction form
    276,437.86/381,459.45 = 155,588.74/x
  3. Step 3: Cross multiply
    276,437.86x = 381,459.45 × 155,588.74
  4. Step 4: Simplify right side
    276,437.86x = 59,350,795,186.59
  5. Step 5: Solve for x
    x = 59,350,795,186.59/276,437.86
  6. Step 6: Final answer
    x = 214,698.50

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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.