Finding the Fourth Proportional to 316,037.52, 474,070.12 and 91,420.66
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Solution
The fourth proportional to 316,037.52, 474,070.12 and 91,420.66 is: 137,134.99
Step by Step Solution
- Step 1: Write the proportion equation
316,037.52 : 474,070.12 = 91,420.66 : x - Step 2: Convert to fraction form
316,037.52/474,070.12 = 91,420.66/x - Step 3: Cross multiply
316,037.52x = 474,070.12 × 91,420.66 - Step 4: Simplify right side
316,037.52x = 43,339,800,954.07 - Step 5: Solve for x
x = 43,339,800,954.07/316,037.52 - Step 6: Final answer
x = 137,134.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.