Finding the Fourth Proportional to 249,031.72, 343,664.58 and 135,856.84
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Solution
The fourth proportional to 249,031.72, 343,664.58 and 135,856.84 is: 187,482.88
Step by Step Solution
- Step 1: Write the proportion equation
249,031.72 : 343,664.58 = 135,856.84 : x - Step 2: Convert to fraction form
249,031.72/343,664.58 = 135,856.84/x - Step 3: Cross multiply
249,031.72x = 343,664.58 × 135,856.84 - Step 4: Simplify right side
249,031.72x = 46,689,183,858.73 - Step 5: Solve for x
x = 46,689,183,858.73/249,031.72 - Step 6: Final answer
x = 187,482.88
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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.