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Finding the Fourth Proportional to 341,628.76, 512,196.90 and 208,477.72

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Solution

The fourth proportional to 341,628.76, 512,196.90 and 208,477.72 is: 312,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,628.76 : 512,196.90 = 208,477.72 : x
  2. Step 2: Convert to fraction form
    341,628.76/512,196.90 = 208,477.72/x
  3. Step 3: Cross multiply
    341,628.76x = 512,196.90 × 208,477.72
  4. Step 4: Simplify right side
    341,628.76x = 106,781,641,903.07
  5. Step 5: Solve for x
    x = 106,781,641,903.07/341,628.76
  6. Step 6: Final answer
    x = 312,566.31

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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.