Finding the Fourth Proportional to 349,718.60, 523,368.30 and 209,577.80
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Solution
The fourth proportional to 349,718.60, 523,368.30 and 209,577.80 is: 313,641.82
Step by Step Solution
- Step 1: Write the proportion equation
349,718.60 : 523,368.30 = 209,577.80 : x - Step 2: Convert to fraction form
349,718.60/523,368.30 = 209,577.80/x - Step 3: Cross multiply
349,718.60x = 523,368.30 × 209,577.80 - Step 4: Simplify right side
349,718.60x = 109,686,376,903.74 - Step 5: Solve for x
x = 109,686,376,903.74/349,718.60 - Step 6: Final answer
x = 313,641.82
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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.