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Finding the Fourth Proportional to 290,837.40, 436,110.30 and 132,887.40

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Solution

The fourth proportional to 290,837.40, 436,110.30 and 132,887.40 is: 199,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,837.40 : 436,110.30 = 132,887.40 : x
  2. Step 2: Convert to fraction form
    290,837.40/436,110.30 = 132,887.40/x
  3. Step 3: Cross multiply
    290,837.40x = 436,110.30 × 132,887.40
  4. Step 4: Simplify right side
    290,837.40x = 57,953,563,880.22
  5. Step 5: Solve for x
    x = 57,953,563,880.22/290,837.40
  6. Step 6: Final answer
    x = 199,264.48

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1.5x scale

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.