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Finding the Fourth Proportional to 216,663.48, 325,030.23 and 66,868.77

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Solution

The fourth proportional to 216,663.48, 325,030.23 and 66,868.77 is: 100,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,663.48 : 325,030.23 = 66,868.77 : x
  2. Step 2: Convert to fraction form
    216,663.48/325,030.23 = 66,868.77/x
  3. Step 3: Cross multiply
    216,663.48x = 325,030.23 × 66,868.77
  4. Step 4: Simplify right side
    216,663.48x = 21,734,371,692.92
  5. Step 5: Solve for x
    x = 21,734,371,692.92/216,663.48
  6. Step 6: Final answer
    x = 100,313.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.