Finding the Fourth Proportional to 247,417.18, 341,415.28 and 145,446.93
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Solution
The fourth proportional to 247,417.18, 341,415.28 and 145,446.93 is: 200,704.75
Step by Step Solution
- Step 1: Write the proportion equation
247,417.18 : 341,415.28 = 145,446.93 : x - Step 2: Convert to fraction form
247,417.18/341,415.28 = 145,446.93/x - Step 3: Cross multiply
247,417.18x = 341,415.28 × 145,446.93 - Step 4: Simplify right side
247,417.18x = 49,657,803,967.47 - Step 5: Solve for x
x = 49,657,803,967.47/247,417.18 - Step 6: Final answer
x = 200,704.75
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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.