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Finding the Fourth Proportional to 374.07, 560.60 and 291.45

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Solution

The fourth proportional to 374.07, 560.60 and 291.45 is: 436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.07 : 560.60 = 291.45 : x
  2. Step 2: Convert to fraction form
    374.07/560.60 = 291.45/x
  3. Step 3: Cross multiply
    374.07x = 560.60 × 291.45
  4. Step 4: Simplify right side
    374.07x = 163,386.87
  5. Step 5: Solve for x
    x = 163,386.87/374.07
  6. Step 6: Final answer
    x = 436.78

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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.