Finding the Fourth Proportional to 309,108.08, 426,533.64 and 173,123.12
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Solution
The fourth proportional to 309,108.08, 426,533.64 and 173,123.12 is: 238,890.02
Step by Step Solution
- Step 1: Write the proportion equation
309,108.08 : 426,533.64 = 173,123.12 : x - Step 2: Convert to fraction form
309,108.08/426,533.64 = 173,123.12/x - Step 3: Cross multiply
309,108.08x = 426,533.64 × 173,123.12 - Step 4: Simplify right side
309,108.08x = 73,842,834,541.76 - Step 5: Solve for x
x = 73,842,834,541.76/309,108.08 - Step 6: Final answer
x = 238,890.02
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1.5x scale
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.