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Finding the Fourth Proportional to 301,746, 452,640.78 and 91,400.28

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Solution

The fourth proportional to 301,746, 452,640.78 and 91,400.28 is: 137,107.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,746 : 452,640.78 = 91,400.28 : x
  2. Step 2: Convert to fraction form
    301,746/452,640.78 = 91,400.28/x
  3. Step 3: Cross multiply
    301,746x = 452,640.78 × 91,400.28
  4. Step 4: Simplify right side
    301,746x = 41,371,494,031.42
  5. Step 5: Solve for x
    x = 41,371,494,031.42/301,746
  6. Step 6: Final answer
    x = 137,107.02

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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.