Finding the Fourth Proportional to 153,973.18, 230,966.24 and 75,153.70
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Solution
The fourth proportional to 153,973.18, 230,966.24 and 75,153.70 is: 112,733.70
Step by Step Solution
- Step 1: Write the proportion equation
153,973.18 : 230,966.24 = 75,153.70 : x - Step 2: Convert to fraction form
153,973.18/230,966.24 = 75,153.70/x - Step 3: Cross multiply
153,973.18x = 230,966.24 × 75,153.70 - Step 4: Simplify right side
153,973.18x = 17,357,965,980.49 - Step 5: Solve for x
x = 17,357,965,980.49/153,973.18 - Step 6: Final answer
x = 112,733.70
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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.