Home / 437,975.20-657,135.60-171,690.40

Finding the Fourth Proportional to 437,975.20, 657,135.60 and 171,690.40

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Solution

The fourth proportional to 437,975.20, 657,135.60 and 171,690.40 is: 257,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,975.20 : 657,135.60 = 171,690.40 : x
  2. Step 2: Convert to fraction form
    437,975.20/657,135.60 = 171,690.40/x
  3. Step 3: Cross multiply
    437,975.20x = 657,135.60 × 171,690.40
  4. Step 4: Simplify right side
    437,975.20x = 112,823,874,018.24
  5. Step 5: Solve for x
    x = 112,823,874,018.24/437,975.20
  6. Step 6: Final answer
    x = 257,603.34

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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.