Home / 387,948.54-535,363.83-218,182.66

Finding the Fourth Proportional to 387,948.54, 535,363.83 and 218,182.66

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Solution

The fourth proportional to 387,948.54, 535,363.83 and 218,182.66 is: 301,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,948.54 : 535,363.83 = 218,182.66 : x
  2. Step 2: Convert to fraction form
    387,948.54/535,363.83 = 218,182.66/x
  3. Step 3: Cross multiply
    387,948.54x = 535,363.83 × 218,182.66
  4. Step 4: Simplify right side
    387,948.54x = 116,807,104,497.19
  5. Step 5: Solve for x
    x = 116,807,104,497.19/387,948.54
  6. Step 6: Final answer
    x = 301,089.17

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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.