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Finding the Fourth Proportional to 301,509.60, 451,875.60 and 143,397.60

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Solution

The fourth proportional to 301,509.60, 451,875.60 and 143,397.60 is: 214,911.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,509.60 : 451,875.60 = 143,397.60 : x
  2. Step 2: Convert to fraction form
    301,509.60/451,875.60 = 143,397.60/x
  3. Step 3: Cross multiply
    301,509.60x = 451,875.60 × 143,397.60
  4. Step 4: Simplify right side
    301,509.60x = 64,797,876,538.56
  5. Step 5: Solve for x
    x = 64,797,876,538.56/301,509.60
  6. Step 6: Final answer
    x = 214,911.49

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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.