Finding the Fourth Proportional to 211,038.48, 291,221.46 and 115,526.70
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Solution
The fourth proportional to 211,038.48, 291,221.46 and 115,526.70 is: 159,420.47
Step by Step Solution
- Step 1: Write the proportion equation
211,038.48 : 291,221.46 = 115,526.70 : x - Step 2: Convert to fraction form
211,038.48/291,221.46 = 115,526.70/x - Step 3: Cross multiply
211,038.48x = 291,221.46 × 115,526.70 - Step 4: Simplify right side
211,038.48x = 33,643,854,242.98 - Step 5: Solve for x
x = 33,643,854,242.98/211,038.48 - Step 6: Final answer
x = 159,420.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.