Finding the Fourth Proportional to 257,722.08, 355,655.70 and 144,547.26
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Solution
The fourth proportional to 257,722.08, 355,655.70 and 144,547.26 is: 199,474.79
Step by Step Solution
- Step 1: Write the proportion equation
257,722.08 : 355,655.70 = 144,547.26 : x - Step 2: Convert to fraction form
257,722.08/355,655.70 = 144,547.26/x - Step 3: Cross multiply
257,722.08x = 355,655.70 × 144,547.26 - Step 4: Simplify right side
257,722.08x = 51,409,056,938.38 - Step 5: Solve for x
x = 51,409,056,938.38/257,722.08 - Step 6: Final answer
x = 199,474.79
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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.