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Finding the Fourth Proportional to 286,499.56, 429,749.34 and 108,965.56

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Solution

The fourth proportional to 286,499.56, 429,749.34 and 108,965.56 is: 163,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,499.56 : 429,749.34 = 108,965.56 : x
  2. Step 2: Convert to fraction form
    286,499.56/429,749.34 = 108,965.56/x
  3. Step 3: Cross multiply
    286,499.56x = 429,749.34 × 108,965.56
  4. Step 4: Simplify right side
    286,499.56x = 46,827,877,492.73
  5. Step 5: Solve for x
    x = 46,827,877,492.73/286,499.56
  6. Step 6: Final answer
    x = 163,448.34

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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.