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Finding the Fourth Proportional to 1,473.90, 2,210.79 and 500.00

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Solution

The fourth proportional to 1,473.90, 2,210.79 and 500.00 is: 749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.90 : 2,210.79 = 500.00 : x
  2. Step 2: Convert to fraction form
    1,473.90/2,210.79 = 500.00/x
  3. Step 3: Cross multiply
    1,473.90x = 2,210.79 × 500.00
  4. Step 4: Simplify right side
    1,473.90x = 1,105,386.97
  5. Step 5: Solve for x
    x = 1,105,386.97/1,473.90
  6. Step 6: Final answer
    x = 749.98

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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.