Home / 659,136.17-988,742.81-254,330.56

Finding the Fourth Proportional to 659,136.17, 988,742.81 and 254,330.56

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Solution

The fourth proportional to 659,136.17, 988,742.81 and 254,330.56 is: 381,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,136.17 : 988,742.81 = 254,330.56 : x
  2. Step 2: Convert to fraction form
    659,136.17/988,742.81 = 254,330.56/x
  3. Step 3: Cross multiply
    659,136.17x = 988,742.81 × 254,330.56
  4. Step 4: Simplify right side
    659,136.17x = 251,467,512,011.85
  5. Step 5: Solve for x
    x = 251,467,512,011.85/659,136.17
  6. Step 6: Final answer
    x = 381,510.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.