Finding the Fourth Proportional to 357,918.84, 536,865.96 and 91,681.66
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Solution
The fourth proportional to 357,918.84, 536,865.96 and 91,681.66 is: 137,519.34
Step by Step Solution
- Step 1: Write the proportion equation
357,918.84 : 536,865.96 = 91,681.66 : x - Step 2: Convert to fraction form
357,918.84/536,865.96 = 91,681.66/x - Step 3: Cross multiply
357,918.84x = 536,865.96 × 91,681.66 - Step 4: Simplify right side
357,918.84x = 49,220,762,410.29 - Step 5: Solve for x
x = 49,220,762,410.29/357,918.84 - Step 6: Final answer
x = 137,519.34
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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.