Home / 386,802.60-579,743.10-162,162.60

Finding the Fourth Proportional to 386,802.60, 579,743.10 and 162,162.60

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Solution

The fourth proportional to 386,802.60, 579,743.10 and 162,162.60 is: 243,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,802.60 : 579,743.10 = 162,162.60 : x
  2. Step 2: Convert to fraction form
    386,802.60/579,743.10 = 162,162.60/x
  3. Step 3: Cross multiply
    386,802.60x = 579,743.10 × 162,162.60
  4. Step 4: Simplify right side
    386,802.60x = 94,012,648,428.06
  5. Step 5: Solve for x
    x = 94,012,648,428.06/386,802.60
  6. Step 6: Final answer
    x = 243,050.71

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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.