Finding the Fourth Proportional to 249,788.53, 344,708.76 and 142,363.09
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Solution
The fourth proportional to 249,788.53, 344,708.76 and 142,363.09 is: 196,461.40
Step by Step Solution
- Step 1: Write the proportion equation
249,788.53 : 344,708.76 = 142,363.09 : x - Step 2: Convert to fraction form
249,788.53/344,708.76 = 142,363.09/x - Step 3: Cross multiply
249,788.53x = 344,708.76 × 142,363.09 - Step 4: Simplify right side
249,788.53x = 49,073,804,223.67 - Step 5: Solve for x
x = 49,073,804,223.67/249,788.53 - Step 6: Final answer
x = 196,461.40
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1.5x scale
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.