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Finding the Fourth Proportional to 573.40, 803.30 and 573.40

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Solution

The fourth proportional to 573.40, 803.30 and 573.40 is: 803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.40 : 803.30 = 573.40 : x
  2. Step 2: Convert to fraction form
    573.40/803.30 = 573.40/x
  3. Step 3: Cross multiply
    573.40x = 803.30 × 573.40
  4. Step 4: Simplify right side
    573.40x = 460,612.22
  5. Step 5: Solve for x
    x = 460,612.22/573.40
  6. Step 6: Final answer
    x = 803.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.