Finding the Fourth Proportional to 373,565.84, 515,518.41 and 212,420.90
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Solution
The fourth proportional to 373,565.84, 515,518.41 and 212,420.90 is: 293,139.45
Step by Step Solution
- Step 1: Write the proportion equation
373,565.84 : 515,518.41 = 212,420.90 : x - Step 2: Convert to fraction form
373,565.84/515,518.41 = 212,420.90/x - Step 3: Cross multiply
373,565.84x = 515,518.41 × 212,420.90 - Step 4: Simplify right side
373,565.84x = 109,506,882,041.18 - Step 5: Solve for x
x = 109,506,882,041.18/373,565.84 - Step 6: Final answer
x = 293,139.45
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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.