Home / 286,653.17-395,579.04-155,829.98

Finding the Fourth Proportional to 286,653.17, 395,579.04 and 155,829.98

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Solution

The fourth proportional to 286,653.17, 395,579.04 and 155,829.98 is: 215,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,653.17 : 395,579.04 = 155,829.98 : x
  2. Step 2: Convert to fraction form
    286,653.17/395,579.04 = 155,829.98/x
  3. Step 3: Cross multiply
    286,653.17x = 395,579.04 × 155,829.98
  4. Step 4: Simplify right side
    286,653.17x = 61,643,073,891.62
  5. Step 5: Solve for x
    x = 61,643,073,891.62/286,653.17
  6. Step 6: Final answer
    x = 215,044.10

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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.