Finding the Fourth Proportional to 478,298.98, 717,549.68 and 158,432.75
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Solution
The fourth proportional to 478,298.98, 717,549.68 and 158,432.75 is: 237,682.65
Step by Step Solution
- Step 1: Write the proportion equation
478,298.98 : 717,549.68 = 158,432.75 : x - Step 2: Convert to fraction form
478,298.98/717,549.68 = 158,432.75/x - Step 3: Cross multiply
478,298.98x = 717,549.68 × 158,432.75 - Step 4: Simplify right side
478,298.98x = 113,683,369,064.02 - Step 5: Solve for x
x = 113,683,369,064.02/478,298.98 - Step 6: Final answer
x = 237,682.65
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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.