Home / 380,288.60-524,804.50-208,203.70

Finding the Fourth Proportional to 380,288.60, 524,804.50 and 208,203.70

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Solution

The fourth proportional to 380,288.60, 524,804.50 and 208,203.70 is: 287,324.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,288.60 : 524,804.50 = 208,203.70 : x
  2. Step 2: Convert to fraction form
    380,288.60/524,804.50 = 208,203.70/x
  3. Step 3: Cross multiply
    380,288.60x = 524,804.50 × 208,203.70
  4. Step 4: Simplify right side
    380,288.60x = 109,266,238,676.65
  5. Step 5: Solve for x
    x = 109,266,238,676.65/380,288.60
  6. Step 6: Final answer
    x = 287,324.52

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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.