Home / 217,750.78-326,055.93-142,634.62

Finding the Fourth Proportional to 217,750.78, 326,055.93 and 142,634.62

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Solution

The fourth proportional to 217,750.78, 326,055.93 and 142,634.62 is: 213,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,750.78 : 326,055.93 = 142,634.62 : x
  2. Step 2: Convert to fraction form
    217,750.78/326,055.93 = 142,634.62/x
  3. Step 3: Cross multiply
    217,750.78x = 326,055.93 × 142,634.62
  4. Step 4: Simplify right side
    217,750.78x = 46,506,863,674.30
  5. Step 5: Solve for x
    x = 46,506,863,674.30/217,750.78
  6. Step 6: Final answer
    x = 213,578.40

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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.