Home / 217,396.07-299,868.50-157,055.39

Finding the Fourth Proportional to 217,396.07, 299,868.50 and 157,055.39

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Solution

The fourth proportional to 217,396.07, 299,868.50 and 157,055.39 is: 216,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,396.07 : 299,868.50 = 157,055.39 : x
  2. Step 2: Convert to fraction form
    217,396.07/299,868.50 = 157,055.39/x
  3. Step 3: Cross multiply
    217,396.07x = 299,868.50 × 157,055.39
  4. Step 4: Simplify right side
    217,396.07x = 47,095,964,216.22
  5. Step 5: Solve for x
    x = 47,095,964,216.22/217,396.07
  6. Step 6: Final answer
    x = 216,636.69

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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.