Finding the Fourth Proportional to 282,955.68, 390,483.99 and 153,896.76
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Solution
The fourth proportional to 282,955.68, 390,483.99 and 153,896.76 is: 212,380.33
Step by Step Solution
- Step 1: Write the proportion equation
282,955.68 : 390,483.99 = 153,896.76 : x - Step 2: Convert to fraction form
282,955.68/390,483.99 = 153,896.76/x - Step 3: Cross multiply
282,955.68x = 390,483.99 × 153,896.76 - Step 4: Simplify right side
282,955.68x = 60,094,220,892.87 - Step 5: Solve for x
x = 60,094,220,892.87/282,955.68 - Step 6: Final answer
x = 212,380.33
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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.