Finding the Fourth Proportional to 178,312.13, 246,070.80 and 97,740.21
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Solution
The fourth proportional to 178,312.13, 246,070.80 and 97,740.21 is: 134,881.51
Step by Step Solution
- Step 1: Write the proportion equation
178,312.13 : 246,070.80 = 97,740.21 : x - Step 2: Convert to fraction form
178,312.13/246,070.80 = 97,740.21/x - Step 3: Cross multiply
178,312.13x = 246,070.80 × 97,740.21 - Step 4: Simplify right side
178,312.13x = 24,051,010,436.51 - Step 5: Solve for x
x = 24,051,010,436.51/178,312.13 - Step 6: Final answer
x = 134,881.51
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1.5x scale
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.