Home / 424,669.68-636,983.64-158,409.72

Finding the Fourth Proportional to 424,669.68, 636,983.64 and 158,409.72

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Solution

The fourth proportional to 424,669.68, 636,983.64 and 158,409.72 is: 237,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,669.68 : 636,983.64 = 158,409.72 : x
  2. Step 2: Convert to fraction form
    424,669.68/636,983.64 = 158,409.72/x
  3. Step 3: Cross multiply
    424,669.68x = 636,983.64 × 158,409.72
  4. Step 4: Simplify right side
    424,669.68x = 100,904,400,056.98
  5. Step 5: Solve for x
    x = 100,904,400,056.98/424,669.68
  6. Step 6: Final answer
    x = 237,606.79

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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.