Finding the Fourth Proportional to 238,174.21, 328,679.08 and 130,746.07
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Solution
The fourth proportional to 238,174.21, 328,679.08 and 130,746.07 is: 180,428.85
Step by Step Solution
- Step 1: Write the proportion equation
238,174.21 : 328,679.08 = 130,746.07 : x - Step 2: Convert to fraction form
238,174.21/328,679.08 = 130,746.07/x - Step 3: Cross multiply
238,174.21x = 328,679.08 × 130,746.07 - Step 4: Simplify right side
238,174.21x = 42,973,498,001.22 - Step 5: Solve for x
x = 42,973,498,001.22/238,174.21 - Step 6: Final answer
x = 180,428.85
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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.