Finding the Fourth Proportional to 307,602.40, 461,239.08 and 157,781.44
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Solution
The fourth proportional to 307,602.40, 461,239.08 and 157,781.44 is: 236,587.77
Step by Step Solution
- Step 1: Write the proportion equation
307,602.40 : 461,239.08 = 157,781.44 : x - Step 2: Convert to fraction form
307,602.40/461,239.08 = 157,781.44/x - Step 3: Cross multiply
307,602.40x = 461,239.08 × 157,781.44 - Step 4: Simplify right side
307,602.40x = 72,774,966,226.68 - Step 5: Solve for x
x = 72,774,966,226.68/307,602.40 - Step 6: Final answer
x = 236,587.77
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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.