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Finding the Fourth Proportional to 211,295.86, 316,418.01 and 147,818.85

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Solution

The fourth proportional to 211,295.86, 316,418.01 and 147,818.85 is: 221,360.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,295.86 : 316,418.01 = 147,818.85 : x
  2. Step 2: Convert to fraction form
    211,295.86/316,418.01 = 147,818.85/x
  3. Step 3: Cross multiply
    211,295.86x = 316,418.01 × 147,818.85
  4. Step 4: Simplify right side
    211,295.86x = 46,772,544,775.40
  5. Step 5: Solve for x
    x = 46,772,544,775.40/211,295.86
  6. Step 6: Final answer
    x = 221,360.44

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1.5x scale

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.