Finding the Fourth Proportional to 458,106.01, 687,202.74 and 142,478.17
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Solution
The fourth proportional to 458,106.01, 687,202.74 and 142,478.17 is: 213,730.85
Step by Step Solution
- Step 1: Write the proportion equation
458,106.01 : 687,202.74 = 142,478.17 : x - Step 2: Convert to fraction form
458,106.01/687,202.74 = 142,478.17/x - Step 3: Cross multiply
458,106.01x = 687,202.74 × 142,478.17 - Step 4: Simplify right side
458,106.01x = 97,911,388,814.19 - Step 5: Solve for x
x = 97,911,388,814.19/458,106.01 - Step 6: Final answer
x = 213,730.85
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1.5x scale
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.