Finding the Fourth Proportional to 257,903.68, 355,815.84 and 168,531.52
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Solution
The fourth proportional to 257,903.68, 355,815.84 and 168,531.52 is: 232,513.88
Step by Step Solution
- Step 1: Write the proportion equation
257,903.68 : 355,815.84 = 168,531.52 : x - Step 2: Convert to fraction form
257,903.68/355,815.84 = 168,531.52/x - Step 3: Cross multiply
257,903.68x = 355,815.84 × 168,531.52 - Step 4: Simplify right side
257,903.68x = 59,966,184,355.28 - Step 5: Solve for x
x = 59,966,184,355.28/257,903.68 - Step 6: Final answer
x = 232,513.88
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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.