Finding the Fourth Proportional to 147,774.20, 221,349.30 and 97,878.20
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Solution
The fourth proportional to 147,774.20, 221,349.30 and 97,878.20 is: 146,610.65
Step by Step Solution
- Step 1: Write the proportion equation
147,774.20 : 221,349.30 = 97,878.20 : x - Step 2: Convert to fraction form
147,774.20/221,349.30 = 97,878.20/x - Step 3: Cross multiply
147,774.20x = 221,349.30 × 97,878.20 - Step 4: Simplify right side
147,774.20x = 21,665,271,055.26 - Step 5: Solve for x
x = 21,665,271,055.26/147,774.20 - Step 6: Final answer
x = 146,610.65
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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.