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Finding the Fourth Proportional to 472.32, 707.56 and 375.00

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Solution

The fourth proportional to 472.32, 707.56 and 375.00 is: 561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.32 : 707.56 = 375.00 : x
  2. Step 2: Convert to fraction form
    472.32/707.56 = 375.00/x
  3. Step 3: Cross multiply
    472.32x = 707.56 × 375.00
  4. Step 4: Simplify right side
    472.32x = 265,329.59
  5. Step 5: Solve for x
    x = 265,329.59/472.32
  6. Step 6: Final answer
    x = 561.76

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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.