Finding the Fourth Proportional to 430,530.55, 645,803.75 and 187,347.09
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Solution
The fourth proportional to 430,530.55, 645,803.75 and 187,347.09 is: 281,024.08
Step by Step Solution
- Step 1: Write the proportion equation
430,530.55 : 645,803.75 = 187,347.09 : x - Step 2: Convert to fraction form
430,530.55/645,803.75 = 187,347.09/x - Step 3: Cross multiply
430,530.55x = 645,803.75 × 187,347.09 - Step 4: Simplify right side
430,530.55x = 120,989,453,273.59 - Step 5: Solve for x
x = 120,989,453,273.59/430,530.55 - Step 6: Final answer
x = 281,024.08
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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.