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Finding the Fourth Proportional to 301,542.60, 451,925.10 and 143,430.60

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Solution

The fourth proportional to 301,542.60, 451,925.10 and 143,430.60 is: 214,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,542.60 : 451,925.10 = 143,430.60 : x
  2. Step 2: Convert to fraction form
    301,542.60/451,925.10 = 143,430.60/x
  3. Step 3: Cross multiply
    301,542.60x = 451,925.10 × 143,430.60
  4. Step 4: Simplify right side
    301,542.60x = 64,819,888,248.06
  5. Step 5: Solve for x
    x = 64,819,888,248.06/301,542.60
  6. Step 6: Final answer
    x = 214,960.96

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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.