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Finding the Fourth Proportional to 366,355.64, 549,570.72 and 126,438.32

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Solution

The fourth proportional to 366,355.64, 549,570.72 and 126,438.32 is: 189,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,355.64 : 549,570.72 = 126,438.32 : x
  2. Step 2: Convert to fraction form
    366,355.64/549,570.72 = 126,438.32/x
  3. Step 3: Cross multiply
    366,355.64x = 549,570.72 × 126,438.32
  4. Step 4: Simplify right side
    366,355.64x = 69,486,798,557.99
  5. Step 5: Solve for x
    x = 69,486,798,557.99/366,355.64
  6. Step 6: Final answer
    x = 189,670.34

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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.