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Finding the Fourth Proportional to 361,804.27, 542,323.50 and 121,689.59

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Solution

The fourth proportional to 361,804.27, 542,323.50 and 121,689.59 is: 182,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,804.27 : 542,323.50 = 121,689.59 : x
  2. Step 2: Convert to fraction form
    361,804.27/542,323.50 = 121,689.59/x
  3. Step 3: Cross multiply
    361,804.27x = 542,323.50 × 121,689.59
  4. Step 4: Simplify right side
    361,804.27x = 65,995,124,929.49
  5. Step 5: Solve for x
    x = 65,995,124,929.49/361,804.27
  6. Step 6: Final answer
    x = 182,405.60

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1.5x scale

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.