Finding the Fourth Proportional to 368,988.18, 553,657.23 and 219,523.74
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Solution
The fourth proportional to 368,988.18, 553,657.23 and 219,523.74 is: 329,389.70
Step by Step Solution
- Step 1: Write the proportion equation
368,988.18 : 553,657.23 = 219,523.74 : x - Step 2: Convert to fraction form
368,988.18/553,657.23 = 219,523.74/x - Step 3: Cross multiply
368,988.18x = 553,657.23 × 219,523.74 - Step 4: Simplify right side
368,988.18x = 121,540,905,807.64 - Step 5: Solve for x
x = 121,540,905,807.64/368,988.18 - Step 6: Final answer
x = 329,389.70
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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.