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Finding the Fourth Proportional to 180,879.55, 249,614.43 and 100,314.52

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Solution

The fourth proportional to 180,879.55, 249,614.43 and 100,314.52 is: 138,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,879.55 : 249,614.43 = 100,314.52 : x
  2. Step 2: Convert to fraction form
    180,879.55/249,614.43 = 100,314.52/x
  3. Step 3: Cross multiply
    180,879.55x = 249,614.43 × 100,314.52
  4. Step 4: Simplify right side
    180,879.55x = 25,039,950,482.45
  5. Step 5: Solve for x
    x = 25,039,950,482.45/180,879.55
  6. Step 6: Final answer
    x = 138,434.40

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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.