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Finding the Fourth Proportional to 290,644.61, 435,788.51 and 112,944.11

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Solution

The fourth proportional to 290,644.61, 435,788.51 and 112,944.11 is: 169,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,644.61 : 435,788.51 = 112,944.11 : x
  2. Step 2: Convert to fraction form
    290,644.61/435,788.51 = 112,944.11/x
  3. Step 3: Cross multiply
    290,644.61x = 435,788.51 × 112,944.11
  4. Step 4: Simplify right side
    290,644.61x = 49,219,742,666.51
  5. Step 5: Solve for x
    x = 49,219,742,666.51/290,644.61
  6. Step 6: Final answer
    x = 169,346.83

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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.