Finding the Fourth Proportional to 319,302.35, 478,814.73 and 91,547.81
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Solution
The fourth proportional to 319,302.35, 478,814.73 and 91,547.81 is: 137,281.92
Step by Step Solution
- Step 1: Write the proportion equation
319,302.35 : 478,814.73 = 91,547.81 : x - Step 2: Convert to fraction form
319,302.35/478,814.73 = 91,547.81/x - Step 3: Cross multiply
319,302.35x = 478,814.73 × 91,547.81 - Step 4: Simplify right side
319,302.35x = 43,834,439,927.24 - Step 5: Solve for x
x = 43,834,439,927.24/319,302.35 - Step 6: Final answer
x = 137,281.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.