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Finding the Fourth Proportional to 290,094.04, 435,145.86 and 79,730.68

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Solution

The fourth proportional to 290,094.04, 435,145.86 and 79,730.68 is: 119,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,094.04 : 435,145.86 = 79,730.68 : x
  2. Step 2: Convert to fraction form
    290,094.04/435,145.86 = 79,730.68/x
  3. Step 3: Cross multiply
    290,094.04x = 435,145.86 × 79,730.68
  4. Step 4: Simplify right side
    290,094.04x = 34,694,475,316.98
  5. Step 5: Solve for x
    x = 34,694,475,316.98/290,094.04
  6. Step 6: Final answer
    x = 119,597.34

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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.