Home / 431,135.91-646,804.05-146,828.93

Finding the Fourth Proportional to 431,135.91, 646,804.05 and 146,828.93

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Solution

The fourth proportional to 431,135.91, 646,804.05 and 146,828.93 is: 220,277.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,135.91 : 646,804.05 = 146,828.93 : x
  2. Step 2: Convert to fraction form
    431,135.91/646,804.05 = 146,828.93/x
  3. Step 3: Cross multiply
    431,135.91x = 646,804.05 × 146,828.93
  4. Step 4: Simplify right side
    431,135.91x = 94,969,543,347.15
  5. Step 5: Solve for x
    x = 94,969,543,347.15/431,135.91
  6. Step 6: Final answer
    x = 220,277.51

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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.