Finding the Fourth Proportional to 869,372.07, 1,303,918.15 and 238,138.35
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Solution
The fourth proportional to 869,372.07, 1,303,918.15 and 238,138.35 is: 357,169.19
Step by Step Solution
- Step 1: Write the proportion equation
869,372.07 : 1,303,918.15 = 238,138.35 : x - Step 2: Convert to fraction form
869,372.07/1,303,918.15 = 238,138.35/x - Step 3: Cross multiply
869,372.07x = 1,303,918.15 × 238,138.35 - Step 4: Simplify right side
869,372.07x = 310,512,916,776.05 - Step 5: Solve for x
x = 310,512,916,776.05/869,372.07 - Step 6: Final answer
x = 357,169.19
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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.