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Finding the Fourth Proportional to 366,858.80, 549,968.20 and 142,372.40

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Solution

The fourth proportional to 366,858.80, 549,968.20 and 142,372.40 is: 213,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,858.80 : 549,968.20 = 142,372.40 : x
  2. Step 2: Convert to fraction form
    366,858.80/549,968.20 = 142,372.40/x
  3. Step 3: Cross multiply
    366,858.80x = 549,968.20 × 142,372.40
  4. Step 4: Simplify right side
    366,858.80x = 78,300,292,557.68
  5. Step 5: Solve for x
    x = 78,300,292,557.68/366,858.80
  6. Step 6: Final answer
    x = 213,434.41

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1.5x scale

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.