Finding the Fourth Proportional to 509,313.34, 763,495.14 and 172,118.19
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Solution
The fourth proportional to 509,313.34, 763,495.14 and 172,118.19 is: 258,016.81
Step by Step Solution
- Step 1: Write the proportion equation
509,313.34 : 763,495.14 = 172,118.19 : x - Step 2: Convert to fraction form
509,313.34/763,495.14 = 172,118.19/x - Step 3: Cross multiply
509,313.34x = 763,495.14 × 172,118.19 - Step 4: Simplify right side
509,313.34x = 131,411,402,447.73 - Step 5: Solve for x
x = 131,411,402,447.73/509,313.34 - Step 6: Final answer
x = 258,016.81
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1.5x scale
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.