Finding the Fourth Proportional to 245,419.84, 368,129.58 and 79,207.84
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Solution
The fourth proportional to 245,419.84, 368,129.58 and 79,207.84 is: 118,811.70
Step by Step Solution
- Step 1: Write the proportion equation
245,419.84 : 368,129.58 = 79,207.84 : x - Step 2: Convert to fraction form
245,419.84/368,129.58 = 79,207.84/x - Step 3: Cross multiply
245,419.84x = 368,129.58 × 79,207.84 - Step 4: Simplify right side
245,419.84x = 29,158,748,871.91 - Step 5: Solve for x
x = 29,158,748,871.91/245,419.84 - Step 6: Final answer
x = 118,811.70
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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.