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Finding the Fourth Proportional to 290,321.25, 400,675.51 and 169,492.23

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Solution

The fourth proportional to 290,321.25, 400,675.51 and 169,492.23 is: 233,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,321.25 : 400,675.51 = 169,492.23 : x
  2. Step 2: Convert to fraction form
    290,321.25/400,675.51 = 169,492.23/x
  3. Step 3: Cross multiply
    290,321.25x = 400,675.51 × 169,492.23
  4. Step 4: Simplify right side
    290,321.25x = 67,911,385,908.15
  5. Step 5: Solve for x
    x = 67,911,385,908.15/290,321.25
  6. Step 6: Final answer
    x = 233,918.07

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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.