Finding the Fourth Proportional to 207,323.80, 310,985.70 and 102,347.80
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Solution
The fourth proportional to 207,323.80, 310,985.70 and 102,347.80 is: 153,521.70
Step by Step Solution
- Step 1: Write the proportion equation
207,323.80 : 310,985.70 = 102,347.80 : x - Step 2: Convert to fraction form
207,323.80/310,985.70 = 102,347.80/x - Step 3: Cross multiply
207,323.80x = 310,985.70 × 102,347.80 - Step 4: Simplify right side
207,323.80x = 31,828,702,226.46 - Step 5: Solve for x
x = 31,828,702,226.46/207,323.80 - Step 6: Final answer
x = 153,521.70
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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.