Finding the Fourth Proportional to 402,346.95, 555,248.57 and 221,070.62
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Solution
The fourth proportional to 402,346.95, 555,248.57 and 221,070.62 is: 305,082.82
Step by Step Solution
- Step 1: Write the proportion equation
402,346.95 : 555,248.57 = 221,070.62 : x - Step 2: Convert to fraction form
402,346.95/555,248.57 = 221,070.62/x - Step 3: Cross multiply
402,346.95x = 555,248.57 × 221,070.62 - Step 4: Simplify right side
402,346.95x = 122,749,141,742.42 - Step 5: Solve for x
x = 122,749,141,742.42/402,346.95 - Step 6: Final answer
x = 305,082.82
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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.