Finding the Fourth Proportional to 249,489.14, 344,294.42 and 136,312.70
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Solution
The fourth proportional to 249,489.14, 344,294.42 and 136,312.70 is: 188,111.20
Step by Step Solution
- Step 1: Write the proportion equation
249,489.14 : 344,294.42 = 136,312.70 : x - Step 2: Convert to fraction form
249,489.14/344,294.42 = 136,312.70/x - Step 3: Cross multiply
249,489.14x = 344,294.42 × 136,312.70 - Step 4: Simplify right side
249,489.14x = 46,931,701,985.13 - Step 5: Solve for x
x = 46,931,701,985.13/249,489.14 - Step 6: Final answer
x = 188,111.20
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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.