Home / 386,488.60-579,272.10-161,848.60

Finding the Fourth Proportional to 386,488.60, 579,272.10 and 161,848.60

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Solution

The fourth proportional to 386,488.60, 579,272.10 and 161,848.60 is: 242,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,488.60 : 579,272.10 = 161,848.60 : x
  2. Step 2: Convert to fraction form
    386,488.60/579,272.10 = 161,848.60/x
  3. Step 3: Cross multiply
    386,488.60x = 579,272.10 × 161,848.60
  4. Step 4: Simplify right side
    386,488.60x = 93,754,378,404.06
  5. Step 5: Solve for x
    x = 93,754,378,404.06/386,488.60
  6. Step 6: Final answer
    x = 242,579.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.