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Finding the Fourth Proportional to 288,260.68, 432,400.74 and 77,900.44

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Solution

The fourth proportional to 288,260.68, 432,400.74 and 77,900.44 is: 116,853.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,260.68 : 432,400.74 = 77,900.44 : x
  2. Step 2: Convert to fraction form
    288,260.68/432,400.74 = 77,900.44/x
  3. Step 3: Cross multiply
    288,260.68x = 432,400.74 × 77,900.44
  4. Step 4: Simplify right side
    288,260.68x = 33,684,207,902.33
  5. Step 5: Solve for x
    x = 33,684,207,902.33/288,260.68
  6. Step 6: Final answer
    x = 116,853.29

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1.5x scale

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.