Finding the Fourth Proportional to 257,307.74, 354,641.36 and 171,112.65
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Solution
The fourth proportional to 257,307.74, 354,641.36 and 171,112.65 is: 235,840.64
Step by Step Solution
- Step 1: Write the proportion equation
257,307.74 : 354,641.36 = 171,112.65 : x - Step 2: Convert to fraction form
257,307.74/354,641.36 = 171,112.65/x - Step 3: Cross multiply
257,307.74x = 354,641.36 × 171,112.65 - Step 4: Simplify right side
257,307.74x = 60,683,622,909.20 - Step 5: Solve for x
x = 60,683,622,909.20/257,307.74 - Step 6: Final answer
x = 235,840.64
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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.