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Finding the Fourth Proportional to 1,368.70, 2,053.33 and 444.35

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Solution

The fourth proportional to 1,368.70, 2,053.33 and 444.35 is: 666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.70 : 2,053.33 = 444.35 : x
  2. Step 2: Convert to fraction form
    1,368.70/2,053.33 = 444.35/x
  3. Step 3: Cross multiply
    1,368.70x = 2,053.33 × 444.35
  4. Step 4: Simplify right side
    1,368.70x = 912,394.11
  5. Step 5: Solve for x
    x = 912,394.11/1,368.70
  6. Step 6: Final answer
    x = 666.61

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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.