Finding the Fourth Proportional to 282,871.24, 390,363.70 and 155,555.08
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Solution
The fourth proportional to 282,871.24, 390,363.70 and 155,555.08 is: 214,666.77
Step by Step Solution
- Step 1: Write the proportion equation
282,871.24 : 390,363.70 = 155,555.08 : x - Step 2: Convert to fraction form
282,871.24/390,363.70 = 155,555.08/x - Step 3: Cross multiply
282,871.24x = 390,363.70 × 155,555.08 - Step 4: Simplify right side
282,871.24x = 60,723,056,582.60 - Step 5: Solve for x
x = 60,723,056,582.60/282,871.24 - Step 6: Final answer
x = 214,666.77
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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.