Finding the Fourth Proportional to 319,156.12, 440,430.19 and 175,929.49
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Solution
The fourth proportional to 319,156.12, 440,430.19 and 175,929.49 is: 242,779.80
Step by Step Solution
- Step 1: Write the proportion equation
319,156.12 : 440,430.19 = 175,929.49 : x - Step 2: Convert to fraction form
319,156.12/440,430.19 = 175,929.49/x - Step 3: Cross multiply
319,156.12x = 440,430.19 × 175,929.49 - Step 4: Simplify right side
319,156.12x = 77,484,658,818.02 - Step 5: Solve for x
x = 77,484,658,818.02/319,156.12 - Step 6: Final answer
x = 242,779.80
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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.