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Finding the Fourth Proportional to 366,074.40, 549,111.60 and 155,719.20

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Solution

The fourth proportional to 366,074.40, 549,111.60 and 155,719.20 is: 233,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,074.40 : 549,111.60 = 155,719.20 : x
  2. Step 2: Convert to fraction form
    366,074.40/549,111.60 = 155,719.20/x
  3. Step 3: Cross multiply
    366,074.40x = 549,111.60 × 155,719.20
  4. Step 4: Simplify right side
    366,074.40x = 85,507,219,062.72
  5. Step 5: Solve for x
    x = 85,507,219,062.72/366,074.40
  6. Step 6: Final answer
    x = 233,578.80

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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.