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Finding the Fourth Proportional to 560.51, 773.11 and 373.90

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Solution

The fourth proportional to 560.51, 773.11 and 373.90 is: 515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.51 : 773.11 = 373.90 : x
  2. Step 2: Convert to fraction form
    560.51/773.11 = 373.90/x
  3. Step 3: Cross multiply
    560.51x = 773.11 × 373.90
  4. Step 4: Simplify right side
    560.51x = 289,065.83
  5. Step 5: Solve for x
    x = 289,065.83/560.51
  6. Step 6: Final answer
    x = 515.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.