Finding the Fourth Proportional to 256,482.08, 353,931.36 and 143,282.96
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Solution
The fourth proportional to 256,482.08, 353,931.36 and 143,282.96 is: 197,722.71
Step by Step Solution
- Step 1: Write the proportion equation
256,482.08 : 353,931.36 = 143,282.96 : x - Step 2: Convert to fraction form
256,482.08/353,931.36 = 143,282.96/x - Step 3: Cross multiply
256,482.08x = 353,931.36 × 143,282.96 - Step 4: Simplify right side
256,482.08x = 50,712,332,897.63 - Step 5: Solve for x
x = 50,712,332,897.63/256,482.08 - Step 6: Final answer
x = 197,722.71
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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.