Finding the Fourth Proportional to 210,356.79, 290,329.79 and 124,312.11
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Solution
The fourth proportional to 210,356.79, 290,329.79 and 124,312.11 is: 171,572.82
Step by Step Solution
- Step 1: Write the proportion equation
210,356.79 : 290,329.79 = 124,312.11 : x - Step 2: Convert to fraction form
210,356.79/290,329.79 = 124,312.11/x - Step 3: Cross multiply
210,356.79x = 290,329.79 × 124,312.11 - Step 4: Simplify right side
210,356.79x = 36,091,508,169.20 - Step 5: Solve for x
x = 36,091,508,169.20/210,356.79 - Step 6: Final answer
x = 171,572.82
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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.