Finding the Fourth Proportional to 342,701.60, 513,898.80 and 155,616.80
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Solution
The fourth proportional to 342,701.60, 513,898.80 and 155,616.80 is: 233,355.45
Step by Step Solution
- Step 1: Write the proportion equation
342,701.60 : 513,898.80 = 155,616.80 : x - Step 2: Convert to fraction form
342,701.60/513,898.80 = 155,616.80/x - Step 3: Cross multiply
342,701.60x = 513,898.80 × 155,616.80 - Step 4: Simplify right side
342,701.60x = 79,971,286,779.84 - Step 5: Solve for x
x = 79,971,286,779.84/342,701.60 - Step 6: Final answer
x = 233,355.45
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1.5x scale
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.