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Finding the Fourth Proportional to 472,243.88, 651,677.64 and 257,379.44

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Solution

The fourth proportional to 472,243.88, 651,677.64 and 257,379.44 is: 355,173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,243.88 : 651,677.64 = 257,379.44 : x
  2. Step 2: Convert to fraction form
    472,243.88/651,677.64 = 257,379.44/x
  3. Step 3: Cross multiply
    472,243.88x = 651,677.64 × 257,379.44
  4. Step 4: Simplify right side
    472,243.88x = 167,728,426,043.72
  5. Step 5: Solve for x
    x = 167,728,426,043.72/472,243.88
  6. Step 6: Final answer
    x = 355,173.32

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1.5x scale

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.