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Finding the Fourth Proportional to 301,330.86, 451,999.53 and 90,970.62

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Solution

The fourth proportional to 301,330.86, 451,999.53 and 90,970.62 is: 136,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,330.86 : 451,999.53 = 90,970.62 : x
  2. Step 2: Convert to fraction form
    301,330.86/451,999.53 = 90,970.62/x
  3. Step 3: Cross multiply
    301,330.86x = 451,999.53 × 90,970.62
  4. Step 4: Simplify right side
    301,330.86x = 41,118,677,483.81
  5. Step 5: Solve for x
    x = 41,118,677,483.81/301,330.86
  6. Step 6: Final answer
    x = 136,456.91

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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.