Finding the Fourth Proportional to 319,745.12, 441,251.34 and 176,502.08
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Solution
The fourth proportional to 319,745.12, 441,251.34 and 176,502.08 is: 243,574.57
Step by Step Solution
- Step 1: Write the proportion equation
319,745.12 : 441,251.34 = 176,502.08 : x - Step 2: Convert to fraction form
319,745.12/441,251.34 = 176,502.08/x - Step 3: Cross multiply
319,745.12x = 441,251.34 × 176,502.08 - Step 4: Simplify right side
319,745.12x = 77,881,779,312.79 - Step 5: Solve for x
x = 77,881,779,312.79/319,745.12 - Step 6: Final answer
x = 243,574.57
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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.