Finding the Fourth Proportional to 368,312.54, 508,266.20 and 207,167.70
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Solution
The fourth proportional to 368,312.54, 508,266.20 and 207,167.70 is: 285,888.55
Step by Step Solution
- Step 1: Write the proportion equation
368,312.54 : 508,266.20 = 207,167.70 : x - Step 2: Convert to fraction form
368,312.54/508,266.20 = 207,167.70/x - Step 3: Cross multiply
368,312.54x = 508,266.20 × 207,167.70 - Step 4: Simplify right side
368,312.54x = 105,296,339,641.74 - Step 5: Solve for x
x = 105,296,339,641.74/368,312.54 - Step 6: Final answer
x = 285,888.55
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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.