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Finding the Fourth Proportional to 272,879.91, 376,574.51 and 152,021.50

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Solution

The fourth proportional to 272,879.91, 376,574.51 and 152,021.50 is: 209,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,879.91 : 376,574.51 = 152,021.50 : x
  2. Step 2: Convert to fraction form
    272,879.91/376,574.51 = 152,021.50/x
  3. Step 3: Cross multiply
    272,879.91x = 376,574.51 × 152,021.50
  4. Step 4: Simplify right side
    272,879.91x = 57,247,421,310.58
  5. Step 5: Solve for x
    x = 57,247,421,310.58/272,879.91
  6. Step 6: Final answer
    x = 209,789.80

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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.