Finding the Fourth Proportional to 211,177.38, 291,425.13 and 115,681.98
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Solution
The fourth proportional to 211,177.38, 291,425.13 and 115,681.98 is: 159,641.32
Step by Step Solution
- Step 1: Write the proportion equation
211,177.38 : 291,425.13 = 115,681.98 : x - Step 2: Convert to fraction form
211,177.38/291,425.13 = 115,681.98/x - Step 3: Cross multiply
211,177.38x = 291,425.13 × 115,681.98 - Step 4: Simplify right side
211,177.38x = 33,712,636,060.16 - Step 5: Solve for x
x = 33,712,636,060.16/211,177.38 - Step 6: Final answer
x = 159,641.32
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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.