Home / 387,948.82-535,289.08-226,772.68

Finding the Fourth Proportional to 387,948.82, 535,289.08 and 226,772.68

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Solution

The fourth proportional to 387,948.82, 535,289.08 and 226,772.68 is: 312,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,948.82 : 535,289.08 = 226,772.68 : x
  2. Step 2: Convert to fraction form
    387,948.82/535,289.08 = 226,772.68/x
  3. Step 3: Cross multiply
    387,948.82x = 535,289.08 × 226,772.68
  4. Step 4: Simplify right side
    387,948.82x = 121,388,939,246.33
  5. Step 5: Solve for x
    x = 121,388,939,246.33/387,948.82
  6. Step 6: Final answer
    x = 312,899.36

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1.5x scale

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.