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Finding the Fourth Proportional to 251,478, 346,832.28 and 150,804.72

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Solution

The fourth proportional to 251,478, 346,832.28 and 150,804.72 is: 207,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,478 : 346,832.28 = 150,804.72 : x
  2. Step 2: Convert to fraction form
    251,478/346,832.28 = 150,804.72/x
  3. Step 3: Cross multiply
    251,478x = 346,832.28 × 150,804.72
  4. Step 4: Simplify right side
    251,478x = 52,303,944,872.36
  5. Step 5: Solve for x
    x = 52,303,944,872.36/251,478
  6. Step 6: Final answer
    x = 207,986.17

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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.