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Finding the Fourth Proportional to 290,376.08, 435,471.92 and 93,338

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Solution

The fourth proportional to 290,376.08, 435,471.92 and 93,338 is: 139,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,376.08 : 435,471.92 = 93,338 : x
  2. Step 2: Convert to fraction form
    290,376.08/435,471.92 = 93,338/x
  3. Step 3: Cross multiply
    290,376.08x = 435,471.92 × 93,338
  4. Step 4: Simplify right side
    290,376.08x = 40,646,078,068.96
  5. Step 5: Solve for x
    x = 40,646,078,068.96/290,376.08
  6. Step 6: Final answer
    x = 139,977.36

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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.