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Finding the Fourth Proportional to 325,417.30, 448,998.51 and 189,368.90

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Solution

The fourth proportional to 325,417.30, 448,998.51 and 189,368.90 is: 261,284.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,417.30 : 448,998.51 = 189,368.90 : x
  2. Step 2: Convert to fraction form
    325,417.30/448,998.51 = 189,368.90/x
  3. Step 3: Cross multiply
    325,417.30x = 448,998.51 × 189,368.90
  4. Step 4: Simplify right side
    325,417.30x = 85,026,353,940.34
  5. Step 5: Solve for x
    x = 85,026,353,940.34/325,417.30
  6. Step 6: Final answer
    x = 261,284.06

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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.