Finding the Fourth Proportional to 249,988.61, 344,985.41 and 136,811.09
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Solution
The fourth proportional to 249,988.61, 344,985.41 and 136,811.09 is: 188,799.92
Step by Step Solution
- Step 1: Write the proportion equation
249,988.61 : 344,985.41 = 136,811.09 : x - Step 2: Convert to fraction form
249,988.61/344,985.41 = 136,811.09/x - Step 3: Cross multiply
249,988.61x = 344,985.41 × 136,811.09 - Step 4: Simplify right side
249,988.61x = 47,197,829,976.20 - Step 5: Solve for x
x = 47,197,829,976.20/249,988.61 - Step 6: Final answer
x = 188,799.92
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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.