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Finding the Fourth Proportional to 219,883.40, 303,433.50 and 123,088.40

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Solution

The fourth proportional to 219,883.40, 303,433.50 and 123,088.40 is: 169,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,883.40 : 303,433.50 = 123,088.40 : x
  2. Step 2: Convert to fraction form
    219,883.40/303,433.50 = 123,088.40/x
  3. Step 3: Cross multiply
    219,883.40x = 303,433.50 × 123,088.40
  4. Step 4: Simplify right side
    219,883.40x = 37,349,144,021.40
  5. Step 5: Solve for x
    x = 37,349,144,021.40/219,883.40
  6. Step 6: Final answer
    x = 169,858.86

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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.