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Finding the Fourth Proportional to 191,104.60, 286,656.90 and 164,860.60

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Solution

The fourth proportional to 191,104.60, 286,656.90 and 164,860.60 is: 247,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,104.60 : 286,656.90 = 164,860.60 : x
  2. Step 2: Convert to fraction form
    191,104.60/286,656.90 = 164,860.60/x
  3. Step 3: Cross multiply
    191,104.60x = 286,656.90 × 164,860.60
  4. Step 4: Simplify right side
    191,104.60x = 47,258,428,528.14
  5. Step 5: Solve for x
    x = 47,258,428,528.14/191,104.60
  6. Step 6: Final answer
    x = 247,290.90

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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.