Home / 316,172.05-436,333.40-187,184.54

Finding the Fourth Proportional to 316,172.05, 436,333.40 and 187,184.54

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Solution

The fourth proportional to 316,172.05, 436,333.40 and 187,184.54 is: 258,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,172.05 : 436,333.40 = 187,184.54 : x
  2. Step 2: Convert to fraction form
    316,172.05/436,333.40 = 187,184.54/x
  3. Step 3: Cross multiply
    316,172.05x = 436,333.40 × 187,184.54
  4. Step 4: Simplify right side
    316,172.05x = 81,674,867,622.49
  5. Step 5: Solve for x
    x = 81,674,867,622.49/316,172.05
  6. Step 6: Final answer
    x = 258,324.13

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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.