Finding the Fourth Proportional to 346,117.20, 519,175.80 and 257,543.70
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Solution
The fourth proportional to 346,117.20, 519,175.80 and 257,543.70 is: 386,315.55
Step by Step Solution
- Step 1: Write the proportion equation
346,117.20 : 519,175.80 = 257,543.70 : x - Step 2: Convert to fraction form
346,117.20/519,175.80 = 257,543.70/x - Step 3: Cross multiply
346,117.20x = 519,175.80 × 257,543.70 - Step 4: Simplify right side
346,117.20x = 133,710,456,482.46 - Step 5: Solve for x
x = 133,710,456,482.46/346,117.20 - Step 6: Final answer
x = 386,315.55
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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.