Finding the Fourth Proportional to 281,125.64, 387,962.58 and 153,798.28
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Solution
The fourth proportional to 281,125.64, 387,962.58 and 153,798.28 is: 212,246.66
Step by Step Solution
- Step 1: Write the proportion equation
281,125.64 : 387,962.58 = 153,798.28 : x - Step 2: Convert to fraction form
281,125.64/387,962.58 = 153,798.28/x - Step 3: Cross multiply
281,125.64x = 387,962.58 × 153,798.28 - Step 4: Simplify right side
281,125.64x = 59,667,977,508.36 - Step 5: Solve for x
x = 59,667,977,508.36/281,125.64 - Step 6: Final answer
x = 212,246.66
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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.