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Finding the Fourth Proportional to 312,866.46, 465,274.98 and 302,901.84

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Solution

The fourth proportional to 312,866.46, 465,274.98 and 302,901.84 is: 450,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,866.46 : 465,274.98 = 302,901.84 : x
  2. Step 2: Convert to fraction form
    312,866.46/465,274.98 = 302,901.84/x
  3. Step 3: Cross multiply
    312,866.46x = 465,274.98 × 302,901.84
  4. Step 4: Simplify right side
    312,866.46x = 140,932,647,547.96
  5. Step 5: Solve for x
    x = 140,932,647,547.96/312,866.46
  6. Step 6: Final answer
    x = 450,456.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.