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Finding the Fourth Proportional to 290,802.30, 401,613.13 and 259,102.35

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Solution

The fourth proportional to 290,802.30, 401,613.13 and 259,102.35 is: 357,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,802.30 : 401,613.13 = 259,102.35 : x
  2. Step 2: Convert to fraction form
    290,802.30/401,613.13 = 259,102.35/x
  3. Step 3: Cross multiply
    290,802.30x = 401,613.13 × 259,102.35
  4. Step 4: Simplify right side
    290,802.30x = 104,058,903,620.05
  5. Step 5: Solve for x
    x = 104,058,903,620.05/290,802.30
  6. Step 6: Final answer
    x = 357,833.84

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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.