Finding the Fourth Proportional to 286,368.95, 395,194.05 and 157,312.87
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Solution
The fourth proportional to 286,368.95, 395,194.05 and 157,312.87 is: 217,094.45
Step by Step Solution
- Step 1: Write the proportion equation
286,368.95 : 395,194.05 = 157,312.87 : x - Step 2: Convert to fraction form
286,368.95/395,194.05 = 157,312.87/x - Step 3: Cross multiply
286,368.95x = 395,194.05 × 157,312.87 - Step 4: Simplify right side
286,368.95x = 62,169,109,224.44 - Step 5: Solve for x
x = 62,169,109,224.44/286,368.95 - Step 6: Final answer
x = 217,094.45
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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.