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Finding the Fourth Proportional to 700.95, 1,050.53 and 290.37

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Solution

The fourth proportional to 700.95, 1,050.53 and 290.37 is: 435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.95 : 1,050.53 = 290.37 : x
  2. Step 2: Convert to fraction form
    700.95/1,050.53 = 290.37/x
  3. Step 3: Cross multiply
    700.95x = 1,050.53 × 290.37
  4. Step 4: Simplify right side
    700.95x = 305,040.94
  5. Step 5: Solve for x
    x = 305,040.94/700.95
  6. Step 6: Final answer
    x = 435.18

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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.