Home / 313,370.40-432,451.44-170,130.36

Finding the Fourth Proportional to 313,370.40, 432,451.44 and 170,130.36

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Solution

The fourth proportional to 313,370.40, 432,451.44 and 170,130.36 is: 234,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,370.40 : 432,451.44 = 170,130.36 : x
  2. Step 2: Convert to fraction form
    313,370.40/432,451.44 = 170,130.36/x
  3. Step 3: Cross multiply
    313,370.40x = 432,451.44 × 170,130.36
  4. Step 4: Simplify right side
    313,370.40x = 73,573,119,169.72
  5. Step 5: Solve for x
    x = 73,573,119,169.72/313,370.40
  6. Step 6: Final answer
    x = 234,780.05

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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.