Finding the Fourth Proportional to 430,983.99, 646,475.55 and 115,432.29
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Solution
The fourth proportional to 430,983.99, 646,475.55 and 115,432.29 is: 173,148.32
Step by Step Solution
- Step 1: Write the proportion equation
430,983.99 : 646,475.55 = 115,432.29 : x - Step 2: Convert to fraction form
430,983.99/646,475.55 = 115,432.29/x - Step 3: Cross multiply
430,983.99x = 646,475.55 × 115,432.29 - Step 4: Simplify right side
430,983.99x = 74,624,153,165.51 - Step 5: Solve for x
x = 74,624,153,165.51/430,983.99 - Step 6: Final answer
x = 173,148.32
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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.