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Finding the Fourth Proportional to 218,460.45, 301,320.14 and 145,826.76

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Solution

The fourth proportional to 218,460.45, 301,320.14 and 145,826.76 is: 201,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,460.45 : 301,320.14 = 145,826.76 : x
  2. Step 2: Convert to fraction form
    218,460.45/301,320.14 = 145,826.76/x
  3. Step 3: Cross multiply
    218,460.45x = 301,320.14 × 145,826.76
  4. Step 4: Simplify right side
    218,460.45x = 43,940,539,009.81
  5. Step 5: Solve for x
    x = 43,940,539,009.81/218,460.45
  6. Step 6: Final answer
    x = 201,137.27

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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.