Finding the Fourth Proportional to 309,498.07, 464,215.99 and 84,881.09
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Solution
The fourth proportional to 309,498.07, 464,215.99 and 84,881.09 is: 127,313.10
Step by Step Solution
- Step 1: Write the proportion equation
309,498.07 : 464,215.99 = 84,881.09 : x - Step 2: Convert to fraction form
309,498.07/464,215.99 = 84,881.09/x - Step 3: Cross multiply
309,498.07x = 464,215.99 × 84,881.09 - Step 4: Simplify right side
309,498.07x = 39,403,159,226.63 - Step 5: Solve for x
x = 39,403,159,226.63/309,498.07 - Step 6: Final answer
x = 127,313.10
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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.