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Finding the Fourth Proportional to 223,455.92, 308,365.45 and 121,483.94

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Solution

The fourth proportional to 223,455.92, 308,365.45 and 121,483.94 is: 167,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,455.92 : 308,365.45 = 121,483.94 : x
  2. Step 2: Convert to fraction form
    223,455.92/308,365.45 = 121,483.94/x
  3. Step 3: Cross multiply
    223,455.92x = 308,365.45 × 121,483.94
  4. Step 4: Simplify right side
    223,455.92x = 37,461,447,980.34
  5. Step 5: Solve for x
    x = 37,461,447,980.34/223,455.92
  6. Step 6: Final answer
    x = 167,645.81

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1.5x scale

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.