Home / 353,123.05-487,313.91-191,974.57

Finding the Fourth Proportional to 353,123.05, 487,313.91 and 191,974.57

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Solution

The fourth proportional to 353,123.05, 487,313.91 and 191,974.57 is: 264,927.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,123.05 : 487,313.91 = 191,974.57 : x
  2. Step 2: Convert to fraction form
    353,123.05/487,313.91 = 191,974.57/x
  3. Step 3: Cross multiply
    353,123.05x = 487,313.91 × 191,974.57
  4. Step 4: Simplify right side
    353,123.05x = 93,551,878,327.27
  5. Step 5: Solve for x
    x = 93,551,878,327.27/353,123.05
  6. Step 6: Final answer
    x = 264,927.14

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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.