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Finding the Fourth Proportional to 1,443.93, 2,165.88 and 470.07

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Solution

The fourth proportional to 1,443.93, 2,165.88 and 470.07 is: 705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.93 : 2,165.88 = 470.07 : x
  2. Step 2: Convert to fraction form
    1,443.93/2,165.88 = 470.07/x
  3. Step 3: Cross multiply
    1,443.93x = 2,165.88 × 470.07
  4. Step 4: Simplify right side
    1,443.93x = 1,018,115.21
  5. Step 5: Solve for x
    x = 1,018,115.21/1,443.93
  6. Step 6: Final answer
    x = 705.10

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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.