Home / 387,947.04-535,361.76-218,181.16

Finding the Fourth Proportional to 387,947.04, 535,361.76 and 218,181.16

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Solution

The fourth proportional to 387,947.04, 535,361.76 and 218,181.16 is: 301,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,947.04 : 535,361.76 = 218,181.16 : x
  2. Step 2: Convert to fraction form
    387,947.04/535,361.76 = 218,181.16/x
  3. Step 3: Cross multiply
    387,947.04x = 535,361.76 × 218,181.16
  4. Step 4: Simplify right side
    387,947.04x = 116,805,849,816.44
  5. Step 5: Solve for x
    x = 116,805,849,816.44/387,947.04
  6. Step 6: Final answer
    x = 301,087.10

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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.