Finding the Fourth Proportional to 319,909.68, 480,159.78 and 162,248.88
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Solution
The fourth proportional to 319,909.68, 480,159.78 and 162,248.88 is: 243,523.07
Step by Step Solution
- Step 1: Write the proportion equation
319,909.68 : 480,159.78 = 162,248.88 : x - Step 2: Convert to fraction form
319,909.68/480,159.78 = 162,248.88/x - Step 3: Cross multiply
319,909.68x = 480,159.78 × 162,248.88 - Step 4: Simplify right side
319,909.68x = 77,905,386,526.05 - Step 5: Solve for x
x = 77,905,386,526.05/319,909.68 - Step 6: Final answer
x = 243,523.07
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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.