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Finding the Fourth Proportional to 389,064.38, 536,950.12 and 228,054.70

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Solution

The fourth proportional to 389,064.38, 536,950.12 and 228,054.70 is: 314,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,064.38 : 536,950.12 = 228,054.70 : x
  2. Step 2: Convert to fraction form
    389,064.38/536,950.12 = 228,054.70/x
  3. Step 3: Cross multiply
    389,064.38x = 536,950.12 × 228,054.70
  4. Step 4: Simplify right side
    389,064.38x = 122,453,997,391.29
  5. Step 5: Solve for x
    x = 122,453,997,391.29/389,064.38
  6. Step 6: Final answer
    x = 314,739.68

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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.