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Finding the Fourth Proportional to 366,820.40, 549,539.40 and 188,721.20

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Solution

The fourth proportional to 366,820.40, 549,539.40 and 188,721.20 is: 282,726.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,820.40 : 549,539.40 = 188,721.20 : x
  2. Step 2: Convert to fraction form
    366,820.40/549,539.40 = 188,721.20/x
  3. Step 3: Cross multiply
    366,820.40x = 549,539.40 × 188,721.20
  4. Step 4: Simplify right side
    366,820.40x = 103,709,735,015.28
  5. Step 5: Solve for x
    x = 103,709,735,015.28/366,820.40
  6. Step 6: Final answer
    x = 282,726.19

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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.