Finding the Fourth Proportional to 258,746.36, 387,988.26 and 118,384.70
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Solution
The fourth proportional to 258,746.36, 387,988.26 and 118,384.70 is: 177,516.98
Step by Step Solution
- Step 1: Write the proportion equation
258,746.36 : 387,988.26 = 118,384.70 : x - Step 2: Convert to fraction form
258,746.36/387,988.26 = 118,384.70/x - Step 3: Cross multiply
258,746.36x = 387,988.26 × 118,384.70 - Step 4: Simplify right side
258,746.36x = 45,931,871,823.68 - Step 5: Solve for x
x = 45,931,871,823.68/258,746.36 - Step 6: Final answer
x = 177,516.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.