Home / 371,698.12-557,568.36-105,437.80

Finding the Fourth Proportional to 371,698.12, 557,568.36 and 105,437.80

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Solution

The fourth proportional to 371,698.12, 557,568.36 and 105,437.80 is: 158,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,698.12 : 557,568.36 = 105,437.80 : x
  2. Step 2: Convert to fraction form
    371,698.12/557,568.36 = 105,437.80/x
  3. Step 3: Cross multiply
    371,698.12x = 557,568.36 × 105,437.80
  4. Step 4: Simplify right side
    371,698.12x = 58,788,781,228.01
  5. Step 5: Solve for x
    x = 58,788,781,228.01/371,698.12
  6. Step 6: Final answer
    x = 158,162.71

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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.