Home / 389,001.80-536,831.97-216,918.08

Finding the Fourth Proportional to 389,001.80, 536,831.97 and 216,918.08

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Solution

The fourth proportional to 389,001.80, 536,831.97 and 216,918.08 is: 299,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,001.80 : 536,831.97 = 216,918.08 : x
  2. Step 2: Convert to fraction form
    389,001.80/536,831.97 = 216,918.08/x
  3. Step 3: Cross multiply
    389,001.80x = 536,831.97 × 216,918.08
  4. Step 4: Simplify right side
    389,001.80x = 116,448,561,460.54
  5. Step 5: Solve for x
    x = 116,448,561,460.54/389,001.80
  6. Step 6: Final answer
    x = 299,352.25

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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.