Home / 253,050.21-348,983.08-209,961.45

Finding the Fourth Proportional to 253,050.21, 348,983.08 and 209,961.45

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Solution

The fourth proportional to 253,050.21, 348,983.08 and 209,961.45 is: 289,559.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,050.21 : 348,983.08 = 209,961.45 : x
  2. Step 2: Convert to fraction form
    253,050.21/348,983.08 = 209,961.45/x
  3. Step 3: Cross multiply
    253,050.21x = 348,983.08 × 209,961.45
  4. Step 4: Simplify right side
    253,050.21x = 73,272,993,502.27
  5. Step 5: Solve for x
    x = 73,272,993,502.27/253,050.21
  6. Step 6: Final answer
    x = 289,559.11

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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.