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Finding the Fourth Proportional to 310,689.09, 465,886.40 and 108,214.59

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Solution

The fourth proportional to 310,689.09, 465,886.40 and 108,214.59 is: 162,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,689.09 : 465,886.40 = 108,214.59 : x
  2. Step 2: Convert to fraction form
    310,689.09/465,886.40 = 108,214.59/x
  3. Step 3: Cross multiply
    310,689.09x = 465,886.40 × 108,214.59
  4. Step 4: Simplify right side
    310,689.09x = 50,415,705,221.50
  5. Step 5: Solve for x
    x = 50,415,705,221.50/310,689.09
  6. Step 6: Final answer
    x = 162,270.60

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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.