Finding the Fourth Proportional to 153,875.40, 230,813.10 and 125,881.80
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Solution
The fourth proportional to 153,875.40, 230,813.10 and 125,881.80 is: 188,822.70
Step by Step Solution
- Step 1: Write the proportion equation
153,875.40 : 230,813.10 = 125,881.80 : x - Step 2: Convert to fraction form
153,875.40/230,813.10 = 125,881.80/x - Step 3: Cross multiply
153,875.40x = 230,813.10 × 125,881.80 - Step 4: Simplify right side
153,875.40x = 29,055,168,491.58 - Step 5: Solve for x
x = 29,055,168,491.58/153,875.40 - Step 6: Final answer
x = 188,822.70
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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.