Finding the Fourth Proportional to 492,070.90, 738,106.35 and 137,139.70
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Solution
The fourth proportional to 492,070.90, 738,106.35 and 137,139.70 is: 205,709.55
Step by Step Solution
- Step 1: Write the proportion equation
492,070.90 : 738,106.35 = 137,139.70 : x - Step 2: Convert to fraction form
492,070.90/738,106.35 = 137,139.70/x - Step 3: Cross multiply
492,070.90x = 738,106.35 × 137,139.70 - Step 4: Simplify right side
492,070.90x = 101,223,683,407.10 - Step 5: Solve for x
x = 101,223,683,407.10/492,070.90 - Step 6: Final answer
x = 205,709.55
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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.