Finding the Fourth Proportional to 399,706.16, 551,595.93 and 218,418.08
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Solution
The fourth proportional to 399,706.16, 551,595.93 and 218,418.08 is: 301,417.73
Step by Step Solution
- Step 1: Write the proportion equation
399,706.16 : 551,595.93 = 218,418.08 : x - Step 2: Convert to fraction form
399,706.16/551,595.93 = 218,418.08/x - Step 3: Cross multiply
399,706.16x = 551,595.93 × 218,418.08 - Step 4: Simplify right side
399,706.16x = 120,478,523,966.41 - Step 5: Solve for x
x = 120,478,523,966.41/399,706.16 - Step 6: Final answer
x = 301,417.73
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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.