Finding the Fourth Proportional to 389,130.84, 537,000.55 and 219,364.97
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Solution
The fourth proportional to 389,130.84, 537,000.55 and 219,364.97 is: 302,723.65
Step by Step Solution
- Step 1: Write the proportion equation
389,130.84 : 537,000.55 = 219,364.97 : x - Step 2: Convert to fraction form
389,130.84/537,000.55 = 219,364.97/x - Step 3: Cross multiply
389,130.84x = 537,000.55 × 219,364.97 - Step 4: Simplify right side
389,130.84x = 117,799,106,307.32 - Step 5: Solve for x
x = 117,799,106,307.32/389,130.84 - Step 6: Final answer
x = 302,723.65
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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.