Finding the Fourth Proportional to 247,125.99, 341,070.30 and 156,490.23
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Solution
The fourth proportional to 247,125.99, 341,070.30 and 156,490.23 is: 215,979.59
Step by Step Solution
- Step 1: Write the proportion equation
247,125.99 : 341,070.30 = 156,490.23 : x - Step 2: Convert to fraction form
247,125.99/341,070.30 = 156,490.23/x - Step 3: Cross multiply
247,125.99x = 341,070.30 × 156,490.23 - Step 4: Simplify right side
247,125.99x = 53,374,169,693.17 - Step 5: Solve for x
x = 53,374,169,693.17/247,125.99 - Step 6: Final answer
x = 215,979.59
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1.5x scale
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.