Finding the Fourth Proportional to 438,323.10, 657,031.05 and 238,220.70
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Solution
The fourth proportional to 438,323.10, 657,031.05 and 238,220.70 is: 357,084.53
Step by Step Solution
- Step 1: Write the proportion equation
438,323.10 : 657,031.05 = 238,220.70 : x - Step 2: Convert to fraction form
438,323.10/657,031.05 = 238,220.70/x - Step 3: Cross multiply
438,323.10x = 657,031.05 × 238,220.70 - Step 4: Simplify right side
438,323.10x = 156,518,396,652.74 - Step 5: Solve for x
x = 156,518,396,652.74/438,323.10 - Step 6: Final answer
x = 357,084.53
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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.