Home / 309,498.16-427,124.98-173,575.50

Finding the Fourth Proportional to 309,498.16, 427,124.98 and 173,575.50

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Solution

The fourth proportional to 309,498.16, 427,124.98 and 173,575.50 is: 239,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,498.16 : 427,124.98 = 173,575.50 : x
  2. Step 2: Convert to fraction form
    309,498.16/427,124.98 = 173,575.50/x
  3. Step 3: Cross multiply
    309,498.16x = 427,124.98 × 173,575.50
  4. Step 4: Simplify right side
    309,498.16x = 74,138,431,965.99
  5. Step 5: Solve for x
    x = 74,138,431,965.99/309,498.16
  6. Step 6: Final answer
    x = 239,544.02

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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.