Home / 372,918.20-514,588.55-209,548.76

Finding the Fourth Proportional to 372,918.20, 514,588.55 and 209,548.76

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Solution

The fourth proportional to 372,918.20, 514,588.55 and 209,548.76 is: 289,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,918.20 : 514,588.55 = 209,548.76 : x
  2. Step 2: Convert to fraction form
    372,918.20/514,588.55 = 209,548.76/x
  3. Step 3: Cross multiply
    372,918.20x = 514,588.55 × 209,548.76
  4. Step 4: Simplify right side
    372,918.20x = 107,831,388,942.01
  5. Step 5: Solve for x
    x = 107,831,388,942.01/372,918.20
  6. Step 6: Final answer
    x = 289,155.61

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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.