Finding the Fourth Proportional to 403,385.66, 605,072.95 and 137,331.71
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Solution
The fourth proportional to 403,385.66, 605,072.95 and 137,331.71 is: 205,995.68
Step by Step Solution
- Step 1: Write the proportion equation
403,385.66 : 605,072.95 = 137,331.71 : x - Step 2: Convert to fraction form
403,385.66/605,072.95 = 137,331.71/x - Step 3: Cross multiply
403,385.66x = 605,072.95 × 137,331.71 - Step 4: Simplify right side
403,385.66x = 83,095,702,898.24 - Step 5: Solve for x
x = 83,095,702,898.24/403,385.66 - Step 6: Final answer
x = 205,995.68
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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.