Finding the Fourth Proportional to 357,438.06, 492,991.20 and 242,805.09
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Solution
The fourth proportional to 357,438.06, 492,991.20 and 242,805.09 is: 334,885.36
Step by Step Solution
- Step 1: Write the proportion equation
357,438.06 : 492,991.20 = 242,805.09 : x - Step 2: Convert to fraction form
357,438.06/492,991.20 = 242,805.09/x - Step 3: Cross multiply
357,438.06x = 492,991.20 × 242,805.09 - Step 4: Simplify right side
357,438.06x = 119,700,772,685.21 - Step 5: Solve for x
x = 119,700,772,685.21/357,438.06 - Step 6: Final answer
x = 334,885.36
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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.