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Finding the Fourth Proportional to 472,703.25, 652,403.48 and 279,131.67

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Solution

The fourth proportional to 472,703.25, 652,403.48 and 279,131.67 is: 385,244.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,703.25 : 652,403.48 = 279,131.67 : x
  2. Step 2: Convert to fraction form
    472,703.25/652,403.48 = 279,131.67/x
  3. Step 3: Cross multiply
    472,703.25x = 652,403.48 × 279,131.67
  4. Step 4: Simplify right side
    472,703.25x = 182,106,472,886.21
  5. Step 5: Solve for x
    x = 182,106,472,886.21/472,703.25
  6. Step 6: Final answer
    x = 385,244.81

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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.