Finding the Fourth Proportional to 257,637.55, 355,582.35 and 142,953.09
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Solution
The fourth proportional to 257,637.55, 355,582.35 and 142,953.09 is: 197,298.86
Step by Step Solution
- Step 1: Write the proportion equation
257,637.55 : 355,582.35 = 142,953.09 : x - Step 2: Convert to fraction form
257,637.55/355,582.35 = 142,953.09/x - Step 3: Cross multiply
257,637.55x = 355,582.35 × 142,953.09 - Step 4: Simplify right side
257,637.55x = 50,831,595,681.96 - Step 5: Solve for x
x = 50,831,595,681.96/257,637.55 - Step 6: Final answer
x = 197,298.86
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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.