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Finding the Fourth Proportional to 218,911.84, 301,911.48 and 151,037.08

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Solution

The fourth proportional to 218,911.84, 301,911.48 and 151,037.08 is: 208,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,911.84 : 301,911.48 = 151,037.08 : x
  2. Step 2: Convert to fraction form
    218,911.84/301,911.48 = 151,037.08/x
  3. Step 3: Cross multiply
    218,911.84x = 301,911.48 × 151,037.08
  4. Step 4: Simplify right side
    218,911.84x = 45,599,828,357.68
  5. Step 5: Solve for x
    x = 45,599,828,357.68/218,911.84
  6. Step 6: Final answer
    x = 208,302.25

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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.