Home / 438,052.51-657,078.77-171,938.35

Finding the Fourth Proportional to 438,052.51, 657,078.77 and 171,938.35

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Solution

The fourth proportional to 438,052.51, 657,078.77 and 171,938.35 is: 257,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,052.51 : 657,078.77 = 171,938.35 : x
  2. Step 2: Convert to fraction form
    438,052.51/657,078.77 = 171,938.35/x
  3. Step 3: Cross multiply
    438,052.51x = 657,078.77 × 171,938.35
  4. Step 4: Simplify right side
    438,052.51x = 112,977,039,533.83
  5. Step 5: Solve for x
    x = 112,977,039,533.83/438,052.51
  6. Step 6: Final answer
    x = 257,907.53

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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.