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Finding the Fourth Proportional to 230,689.50, 318,370.95 and 130,106.94

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Solution

The fourth proportional to 230,689.50, 318,370.95 and 130,106.94 is: 179,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,689.50 : 318,370.95 = 130,106.94 : x
  2. Step 2: Convert to fraction form
    230,689.50/318,370.95 = 130,106.94/x
  3. Step 3: Cross multiply
    230,689.50x = 318,370.95 × 130,106.94
  4. Step 4: Simplify right side
    230,689.50x = 41,422,270,089.39
  5. Step 5: Solve for x
    x = 41,422,270,089.39/230,689.50
  6. Step 6: Final answer
    x = 179,558.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.