Finding the Fourth Proportional to 345,813.08, 518,572.74 and 135,417.56
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Solution
The fourth proportional to 345,813.08, 518,572.74 and 135,417.56 is: 203,068.82
Step by Step Solution
- Step 1: Write the proportion equation
345,813.08 : 518,572.74 = 135,417.56 : x - Step 2: Convert to fraction form
345,813.08/518,572.74 = 135,417.56/x - Step 3: Cross multiply
345,813.08x = 518,572.74 × 135,417.56 - Step 4: Simplify right side
345,813.08x = 70,223,855,133.31 - Step 5: Solve for x
x = 70,223,855,133.31/345,813.08 - Step 6: Final answer
x = 203,068.82
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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.