Finding the Fourth Proportional to 348,783.84, 478,186.74 and 342,485.28
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Solution
The fourth proportional to 348,783.84, 478,186.74 and 342,485.28 is: 469,551.34
Step by Step Solution
- Step 1: Write the proportion equation
348,783.84 : 478,186.74 = 342,485.28 : x - Step 2: Convert to fraction form
348,783.84/478,186.74 = 342,485.28/x - Step 3: Cross multiply
348,783.84x = 478,186.74 × 342,485.28 - Step 4: Simplify right side
348,783.84x = 163,771,919,541.19 - Step 5: Solve for x
x = 163,771,919,541.19/348,783.84 - Step 6: Final answer
x = 469,551.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.