Finding the Fourth Proportional to 249,303.84, 344,039.28 and 136,126.68
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Solution
The fourth proportional to 249,303.84, 344,039.28 and 136,126.68 is: 187,854.81
Step by Step Solution
- Step 1: Write the proportion equation
249,303.84 : 344,039.28 = 136,126.68 : x - Step 2: Convert to fraction form
249,303.84/344,039.28 = 136,126.68/x - Step 3: Cross multiply
249,303.84x = 344,039.28 × 136,126.68 - Step 4: Simplify right side
249,303.84x = 46,832,924,975.99 - Step 5: Solve for x
x = 46,832,924,975.99/249,303.84 - Step 6: Final answer
x = 187,854.81
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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.