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Finding the Fourth Proportional to 325,146.39, 448,852.66 and 189,130.78

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Solution

The fourth proportional to 325,146.39, 448,852.66 and 189,130.78 is: 261,088.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,146.39 : 448,852.66 = 189,130.78 : x
  2. Step 2: Convert to fraction form
    325,146.39/448,852.66 = 189,130.78/x
  3. Step 3: Cross multiply
    325,146.39x = 448,852.66 × 189,130.78
  4. Step 4: Simplify right side
    325,146.39x = 84,891,853,779.11
  5. Step 5: Solve for x
    x = 84,891,853,779.11/325,146.39
  6. Step 6: Final answer
    x = 261,088.10

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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.