Finding the Fourth Proportional to 357,305.13, 535,957.70 and 107,987.13
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Solution
The fourth proportional to 357,305.13, 535,957.70 and 107,987.13 is: 161,980.70
Step by Step Solution
- Step 1: Write the proportion equation
357,305.13 : 535,957.70 = 107,987.13 : x - Step 2: Convert to fraction form
357,305.13/535,957.70 = 107,987.13/x - Step 3: Cross multiply
357,305.13x = 535,957.70 × 107,987.13 - Step 4: Simplify right side
357,305.13x = 57,876,533,824.40 - Step 5: Solve for x
x = 57,876,533,824.40/357,305.13 - Step 6: Final answer
x = 161,980.70
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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.