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Finding the Fourth Proportional to 313,277.21, 432,323.05 and 170,037.32

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Solution

The fourth proportional to 313,277.21, 432,323.05 and 170,037.32 is: 234,651.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,277.21 : 432,323.05 = 170,037.32 : x
  2. Step 2: Convert to fraction form
    313,277.21/432,323.05 = 170,037.32/x
  3. Step 3: Cross multiply
    313,277.21x = 432,323.05 × 170,037.32
  4. Step 4: Simplify right side
    313,277.21x = 73,511,050,209.52
  5. Step 5: Solve for x
    x = 73,511,050,209.52/313,277.21
  6. Step 6: Final answer
    x = 234,651.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.