Home / 390,323.76-585,017.03-200,873.52

Finding the Fourth Proportional to 390,323.76, 585,017.03 and 200,873.52

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Solution

The fourth proportional to 390,323.76, 585,017.03 and 200,873.52 is: 301,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,323.76 : 585,017.03 = 200,873.52 : x
  2. Step 2: Convert to fraction form
    390,323.76/585,017.03 = 200,873.52/x
  3. Step 3: Cross multiply
    390,323.76x = 585,017.03 × 200,873.52
  4. Step 4: Simplify right side
    390,323.76x = 117,514,430,578.23
  5. Step 5: Solve for x
    x = 117,514,430,578.23/390,323.76
  6. Step 6: Final answer
    x = 301,069.12

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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.