Home / 313,625.10-432,839.72-186,301.20

Finding the Fourth Proportional to 313,625.10, 432,839.72 and 186,301.20

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Solution

The fourth proportional to 313,625.10, 432,839.72 and 186,301.20 is: 257,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,625.10 : 432,839.72 = 186,301.20 : x
  2. Step 2: Convert to fraction form
    313,625.10/432,839.72 = 186,301.20/x
  3. Step 3: Cross multiply
    313,625.10x = 432,839.72 × 186,301.20
  4. Step 4: Simplify right side
    313,625.10x = 80,638,559,243.66
  5. Step 5: Solve for x
    x = 80,638,559,243.66/313,625.10
  6. Step 6: Final answer
    x = 257,117.68

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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.