Finding the Fourth Proportional to 357,437.69, 492,990.68 and 242,804.72
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Solution
The fourth proportional to 357,437.69, 492,990.68 and 242,804.72 is: 334,884.84
Step by Step Solution
- Step 1: Write the proportion equation
357,437.69 : 492,990.68 = 242,804.72 : x - Step 2: Convert to fraction form
357,437.69/492,990.68 = 242,804.72/x - Step 3: Cross multiply
357,437.69x = 492,990.68 × 242,804.72 - Step 4: Simplify right side
357,437.69x = 119,700,460,341.03 - Step 5: Solve for x
x = 119,700,460,341.03/357,437.69 - Step 6: Final answer
x = 334,884.84
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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.