Home / 310,290.24-465,426.10-85,664.39

Finding the Fourth Proportional to 310,290.24, 465,426.10 and 85,664.39

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Solution

The fourth proportional to 310,290.24, 465,426.10 and 85,664.39 is: 128,494.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,290.24 : 465,426.10 = 85,664.39 : x
  2. Step 2: Convert to fraction form
    310,290.24/465,426.10 = 85,664.39/x
  3. Step 3: Cross multiply
    310,290.24x = 465,426.10 × 85,664.39
  4. Step 4: Simplify right side
    310,290.24x = 39,870,442,946.58
  5. Step 5: Solve for x
    x = 39,870,442,946.58/310,290.24
  6. Step 6: Final answer
    x = 128,494.03

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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.