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Finding the Fourth Proportional to 331,661.88, 457,551.54 and 216,741.08

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Solution

The fourth proportional to 331,661.88, 457,551.54 and 216,741.08 is: 299,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,661.88 : 457,551.54 = 216,741.08 : x
  2. Step 2: Convert to fraction form
    331,661.88/457,551.54 = 216,741.08/x
  3. Step 3: Cross multiply
    331,661.88x = 457,551.54 × 216,741.08
  4. Step 4: Simplify right side
    331,661.88x = 99,170,212,647.51
  5. Step 5: Solve for x
    x = 99,170,212,647.51/331,661.88
  6. Step 6: Final answer
    x = 299,009.98

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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.