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Finding the Fourth Proportional to 162,788, 245,291.26 and 133,854

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Solution

The fourth proportional to 162,788, 245,291.26 and 133,854 is: 201,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,788 : 245,291.26 = 133,854 : x
  2. Step 2: Convert to fraction form
    162,788/245,291.26 = 133,854/x
  3. Step 3: Cross multiply
    162,788x = 245,291.26 × 133,854
  4. Step 4: Simplify right side
    162,788x = 32,833,216,316.04
  5. Step 5: Solve for x
    x = 32,833,216,316.04/162,788
  6. Step 6: Final answer
    x = 201,693.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.