Finding the Fourth Proportional to 464,088.21, 640,402.61 and 257,362.53
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Solution
The fourth proportional to 464,088.21, 640,402.61 and 257,362.53 is: 355,138.59
Step by Step Solution
- Step 1: Write the proportion equation
464,088.21 : 640,402.61 = 257,362.53 : x - Step 2: Convert to fraction form
464,088.21/640,402.61 = 257,362.53/x - Step 3: Cross multiply
464,088.21x = 640,402.61 × 257,362.53 - Step 4: Simplify right side
464,088.21x = 164,815,634,641.39 - Step 5: Solve for x
x = 164,815,634,641.39/464,088.21 - Step 6: Final answer
x = 355,138.59
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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.