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Finding the Fourth Proportional to 783.36, 1,174.93 and 296.35

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Solution

The fourth proportional to 783.36, 1,174.93 and 296.35 is: 444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.36 : 1,174.93 = 296.35 : x
  2. Step 2: Convert to fraction form
    783.36/1,174.93 = 296.35/x
  3. Step 3: Cross multiply
    783.36x = 1,174.93 × 296.35
  4. Step 4: Simplify right side
    783.36x = 348,186.83
  5. Step 5: Solve for x
    x = 348,186.83/783.36
  6. Step 6: Final answer
    x = 444.48

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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.