Finding the Fourth Proportional to 319,355.64, 440,702.10 and 176,113.08
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Solution
The fourth proportional to 319,355.64, 440,702.10 and 176,113.08 is: 243,031.26
Step by Step Solution
- Step 1: Write the proportion equation
319,355.64 : 440,702.10 = 176,113.08 : x - Step 2: Convert to fraction form
319,355.64/440,702.10 = 176,113.08/x - Step 3: Cross multiply
319,355.64x = 440,702.10 × 176,113.08 - Step 4: Simplify right side
319,355.64x = 77,613,404,193.47 - Step 5: Solve for x
x = 77,613,404,193.47/319,355.64 - Step 6: Final answer
x = 243,031.26
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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.