Finding the Fourth Proportional to 253,929.80, 350,426.64 and 139,206.08
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Solution
The fourth proportional to 253,929.80, 350,426.64 and 139,206.08 is: 192,106.32
Step by Step Solution
- Step 1: Write the proportion equation
253,929.80 : 350,426.64 = 139,206.08 : x - Step 2: Convert to fraction form
253,929.80/350,426.64 = 139,206.08/x - Step 3: Cross multiply
253,929.80x = 350,426.64 × 139,206.08 - Step 4: Simplify right side
253,929.80x = 48,781,518,881.97 - Step 5: Solve for x
x = 48,781,518,881.97/253,929.80 - Step 6: Final answer
x = 192,106.32
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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.