Finding the Fourth Proportional to 282,686.76, 390,130.02 and 161,866.08
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Solution
The fourth proportional to 282,686.76, 390,130.02 and 161,866.08 is: 223,387.95
Step by Step Solution
- Step 1: Write the proportion equation
282,686.76 : 390,130.02 = 161,866.08 : x - Step 2: Convert to fraction form
282,686.76/390,130.02 = 161,866.08/x - Step 3: Cross multiply
282,686.76x = 390,130.02 × 161,866.08 - Step 4: Simplify right side
282,686.76x = 63,148,817,027.72 - Step 5: Solve for x
x = 63,148,817,027.72/282,686.76 - Step 6: Final answer
x = 223,387.95
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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.