Home / 430,790.38-646,188.77-160,979.50

Finding the Fourth Proportional to 430,790.38, 646,188.77 and 160,979.50

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Solution

The fourth proportional to 430,790.38, 646,188.77 and 160,979.50 is: 241,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,790.38 : 646,188.77 = 160,979.50 : x
  2. Step 2: Convert to fraction form
    430,790.38/646,188.77 = 160,979.50/x
  3. Step 3: Cross multiply
    430,790.38x = 646,188.77 × 160,979.50
  4. Step 4: Simplify right side
    430,790.38x = 104,023,145,100.22
  5. Step 5: Solve for x
    x = 104,023,145,100.22/430,790.38
  6. Step 6: Final answer
    x = 241,470.45

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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.