Finding the Fourth Proportional to 425,417.36, 638,123.74 and 245,386.09
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Solution
The fourth proportional to 425,417.36, 638,123.74 and 245,386.09 is: 368,077.81
Step by Step Solution
- Step 1: Write the proportion equation
425,417.36 : 638,123.74 = 245,386.09 : x - Step 2: Convert to fraction form
425,417.36/638,123.74 = 245,386.09/x - Step 3: Cross multiply
425,417.36x = 638,123.74 × 245,386.09 - Step 4: Simplify right side
425,417.36x = 156,586,689,678.97 - Step 5: Solve for x
x = 156,586,689,678.97/425,417.36 - Step 6: Final answer
x = 368,077.81
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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.