Finding the Fourth Proportional to 368,702.12, 508,789.58 and 207,551.81
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Solution
The fourth proportional to 368,702.12, 508,789.58 and 207,551.81 is: 286,410.61
Step by Step Solution
- Step 1: Write the proportion equation
368,702.12 : 508,789.58 = 207,551.81 : x - Step 2: Convert to fraction form
368,702.12/508,789.58 = 207,551.81/x - Step 3: Cross multiply
368,702.12x = 508,789.58 × 207,551.81 - Step 4: Simplify right side
368,702.12x = 105,600,198,472.36 - Step 5: Solve for x
x = 105,600,198,472.36/368,702.12 - Step 6: Final answer
x = 286,410.61
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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.