Home / 247,055.10-370,578.75-78,573

Finding the Fourth Proportional to 247,055.10, 370,578.75 and 78,573

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Solution

The fourth proportional to 247,055.10, 370,578.75 and 78,573 is: 117,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,055.10 : 370,578.75 = 78,573 : x
  2. Step 2: Convert to fraction form
    247,055.10/370,578.75 = 78,573/x
  3. Step 3: Cross multiply
    247,055.10x = 370,578.75 × 78,573
  4. Step 4: Simplify right side
    247,055.10x = 29,117,484,123.75
  5. Step 5: Solve for x
    x = 29,117,484,123.75/247,055.10
  6. Step 6: Final answer
    x = 117,858.26

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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.