Home / 371,243.25-556,875.81-90,760.50

Finding the Fourth Proportional to 371,243.25, 556,875.81 and 90,760.50

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Solution

The fourth proportional to 371,243.25, 556,875.81 and 90,760.50 is: 136,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,243.25 : 556,875.81 = 90,760.50 : x
  2. Step 2: Convert to fraction form
    371,243.25/556,875.81 = 90,760.50/x
  3. Step 3: Cross multiply
    371,243.25x = 556,875.81 × 90,760.50
  4. Step 4: Simplify right side
    371,243.25x = 50,542,326,953.51
  5. Step 5: Solve for x
    x = 50,542,326,953.51/371,243.25
  6. Step 6: Final answer
    x = 136,143.42

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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.