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Finding the Fourth Proportional to 210,048.82, 315,114.24 and 67,929.40

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Solution

The fourth proportional to 210,048.82, 315,114.24 and 67,929.40 is: 101,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,048.82 : 315,114.24 = 67,929.40 : x
  2. Step 2: Convert to fraction form
    210,048.82/315,114.24 = 67,929.40/x
  3. Step 3: Cross multiply
    210,048.82x = 315,114.24 × 67,929.40
  4. Step 4: Simplify right side
    210,048.82x = 21,405,521,254.66
  5. Step 5: Solve for x
    x = 21,405,521,254.66/210,048.82
  6. Step 6: Final answer
    x = 101,907.36

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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.