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Finding the Fourth Proportional to 395,339.08, 545,567.08 and 214,051.20

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Solution

The fourth proportional to 395,339.08, 545,567.08 and 214,051.20 is: 295,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,339.08 : 545,567.08 = 214,051.20 : x
  2. Step 2: Convert to fraction form
    395,339.08/545,567.08 = 214,051.20/x
  3. Step 3: Cross multiply
    395,339.08x = 545,567.08 × 214,051.20
  4. Step 4: Simplify right side
    395,339.08x = 116,779,288,154.50
  5. Step 5: Solve for x
    x = 116,779,288,154.50/395,339.08
  6. Step 6: Final answer
    x = 295,390.20

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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.