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Finding the Fourth Proportional to 290,495.16, 435,812.79 and 100,927.94

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Solution

The fourth proportional to 290,495.16, 435,812.79 and 100,927.94 is: 151,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,495.16 : 435,812.79 = 100,927.94 : x
  2. Step 2: Convert to fraction form
    290,495.16/435,812.79 = 100,927.94/x
  3. Step 3: Cross multiply
    290,495.16x = 435,812.79 × 100,927.94
  4. Step 4: Simplify right side
    290,495.16x = 43,985,687,120.35
  5. Step 5: Solve for x
    x = 43,985,687,120.35/290,495.16
  6. Step 6: Final answer
    x = 151,416.25

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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.