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Finding the Fourth Proportional to 380,097.72, 524,545.74 and 210,347.64

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Solution

The fourth proportional to 380,097.72, 524,545.74 and 210,347.64 is: 290,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,097.72 : 524,545.74 = 210,347.64 : x
  2. Step 2: Convert to fraction form
    380,097.72/524,545.74 = 210,347.64/x
  3. Step 3: Cross multiply
    380,097.72x = 524,545.74 × 210,347.64
  4. Step 4: Simplify right side
    380,097.72x = 110,336,958,481.05
  5. Step 5: Solve for x
    x = 110,336,958,481.05/380,097.72
  6. Step 6: Final answer
    x = 290,285.77

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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.