Finding the Fourth Proportional to 282,756.74, 390,207.06 and 153,695.78
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Solution
The fourth proportional to 282,756.74, 390,207.06 and 153,695.78 is: 212,101.68
Step by Step Solution
- Step 1: Write the proportion equation
282,756.74 : 390,207.06 = 153,695.78 : x - Step 2: Convert to fraction form
282,756.74/390,207.06 = 153,695.78/x - Step 3: Cross multiply
282,756.74x = 390,207.06 × 153,695.78 - Step 4: Simplify right side
282,756.74x = 59,973,178,448.21 - Step 5: Solve for x
x = 59,973,178,448.21/282,756.74 - Step 6: Final answer
x = 212,101.68
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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.