Home / 386,865.60-579,837.60-162,225.60

Finding the Fourth Proportional to 386,865.60, 579,837.60 and 162,225.60

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Solution

The fourth proportional to 386,865.60, 579,837.60 and 162,225.60 is: 243,145.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,865.60 : 579,837.60 = 162,225.60 : x
  2. Step 2: Convert to fraction form
    386,865.60/579,837.60 = 162,225.60/x
  3. Step 3: Cross multiply
    386,865.60x = 579,837.60 × 162,225.60
  4. Step 4: Simplify right side
    386,865.60x = 94,064,502,562.56
  5. Step 5: Solve for x
    x = 94,064,502,562.56/386,865.60
  6. Step 6: Final answer
    x = 243,145.17

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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.