Finding the Fourth Proportional to 152,406.10, 228,220.35 and 121,302.10
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Solution
The fourth proportional to 152,406.10, 228,220.35 and 121,302.10 is: 181,643.70
Step by Step Solution
- Step 1: Write the proportion equation
152,406.10 : 228,220.35 = 121,302.10 : x - Step 2: Convert to fraction form
152,406.10/228,220.35 = 121,302.10/x - Step 3: Cross multiply
152,406.10x = 228,220.35 × 121,302.10 - Step 4: Simplify right side
152,406.10x = 27,683,607,717.74 - Step 5: Solve for x
x = 27,683,607,717.74/152,406.10 - Step 6: Final answer
x = 181,643.70
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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.