Finding the Fourth Proportional to 249,721.18, 344,637.74 and 142,325.81
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Solution
The fourth proportional to 249,721.18, 344,637.74 and 142,325.81 is: 196,422.45
Step by Step Solution
- Step 1: Write the proportion equation
249,721.18 : 344,637.74 = 142,325.81 : x - Step 2: Convert to fraction form
249,721.18/344,637.74 = 142,325.81/x - Step 3: Cross multiply
249,721.18x = 344,637.74 × 142,325.81 - Step 4: Simplify right side
249,721.18x = 49,050,845,502.07 - Step 5: Solve for x
x = 49,050,845,502.07/249,721.18 - Step 6: Final answer
x = 196,422.45
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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.