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Finding the Fourth Proportional to 213,483.68, 319,782.63 and 124,467.20

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Solution

The fourth proportional to 213,483.68, 319,782.63 and 124,467.20 is: 186,442.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,483.68 : 319,782.63 = 124,467.20 : x
  2. Step 2: Convert to fraction form
    213,483.68/319,782.63 = 124,467.20/x
  3. Step 3: Cross multiply
    213,483.68x = 319,782.63 × 124,467.20
  4. Step 4: Simplify right side
    213,483.68x = 39,802,448,564.74
  5. Step 5: Solve for x
    x = 39,802,448,564.74/213,483.68
  6. Step 6: Final answer
    x = 186,442.58

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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.