Home / 309,629.80-464,444.70-191,531.80

Finding the Fourth Proportional to 309,629.80, 464,444.70 and 191,531.80

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Solution

The fourth proportional to 309,629.80, 464,444.70 and 191,531.80 is: 287,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,629.80 : 464,444.70 = 191,531.80 : x
  2. Step 2: Convert to fraction form
    309,629.80/464,444.70 = 191,531.80/x
  3. Step 3: Cross multiply
    309,629.80x = 464,444.70 × 191,531.80
  4. Step 4: Simplify right side
    309,629.80x = 88,955,929,391.46
  5. Step 5: Solve for x
    x = 88,955,929,391.46/309,629.80
  6. Step 6: Final answer
    x = 287,297.70

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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.