Finding the Fourth Proportional to 319,319.64, 440,652.42 and 176,077.08
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Solution
The fourth proportional to 319,319.64, 440,652.42 and 176,077.08 is: 242,981.58
Step by Step Solution
- Step 1: Write the proportion equation
319,319.64 : 440,652.42 = 176,077.08 : x - Step 2: Convert to fraction form
319,319.64/440,652.42 = 176,077.08/x - Step 3: Cross multiply
319,319.64x = 440,652.42 × 176,077.08 - Step 4: Simplify right side
319,319.64x = 77,588,791,408.53 - Step 5: Solve for x
x = 77,588,791,408.53/319,319.64 - Step 6: Final answer
x = 242,981.58
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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.