Home / 209,325.63-288,934.14-155,683.30

Finding the Fourth Proportional to 209,325.63, 288,934.14 and 155,683.30

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Solution

The fourth proportional to 209,325.63, 288,934.14 and 155,683.30 is: 214,891.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,325.63 : 288,934.14 = 155,683.30 : x
  2. Step 2: Convert to fraction form
    209,325.63/288,934.14 = 155,683.30/x
  3. Step 3: Cross multiply
    209,325.63x = 288,934.14 × 155,683.30
  4. Step 4: Simplify right side
    209,325.63x = 44,982,221,144.31
  5. Step 5: Solve for x
    x = 44,982,221,144.31/209,325.63
  6. Step 6: Final answer
    x = 214,891.13

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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.