Finding the Fourth Proportional to 159,473.80, 239,210.70 and 138,737.80
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Solution
The fourth proportional to 159,473.80, 239,210.70 and 138,737.80 is: 208,106.70
Step by Step Solution
- Step 1: Write the proportion equation
159,473.80 : 239,210.70 = 138,737.80 : x - Step 2: Convert to fraction form
159,473.80/239,210.70 = 138,737.80/x - Step 3: Cross multiply
159,473.80x = 239,210.70 × 138,737.80 - Step 4: Simplify right side
159,473.80x = 33,187,566,254.46 - Step 5: Solve for x
x = 33,187,566,254.46/159,473.80 - Step 6: Final answer
x = 208,106.70
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1.5x scale
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.