Home / 386,848.60-579,812.10-162,208.60

Finding the Fourth Proportional to 386,848.60, 579,812.10 and 162,208.60

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Solution

The fourth proportional to 386,848.60, 579,812.10 and 162,208.60 is: 243,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,848.60 : 579,812.10 = 162,208.60 : x
  2. Step 2: Convert to fraction form
    386,848.60/579,812.10 = 162,208.60/x
  3. Step 3: Cross multiply
    386,848.60x = 579,812.10 × 162,208.60
  4. Step 4: Simplify right side
    386,848.60x = 94,050,509,004.06
  5. Step 5: Solve for x
    x = 94,050,509,004.06/386,848.60
  6. Step 6: Final answer
    x = 243,119.68

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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.