Finding the Fourth Proportional to 282,762.40, 390,202.24 and 155,437.08
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Solution
The fourth proportional to 282,762.40, 390,202.24 and 155,437.08 is: 214,497.74
Step by Step Solution
- Step 1: Write the proportion equation
282,762.40 : 390,202.24 = 155,437.08 : x - Step 2: Convert to fraction form
282,762.40/390,202.24 = 155,437.08/x - Step 3: Cross multiply
282,762.40x = 390,202.24 × 155,437.08 - Step 4: Simplify right side
282,762.40x = 60,651,896,795.06 - Step 5: Solve for x
x = 60,651,896,795.06/282,762.40 - Step 6: Final answer
x = 214,497.74
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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.