Finding the Fourth Proportional to 235,210.12, 351,037.68 and 212,509.76
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Solution
The fourth proportional to 235,210.12, 351,037.68 and 212,509.76 is: 317,158.69
Step by Step Solution
- Step 1: Write the proportion equation
235,210.12 : 351,037.68 = 212,509.76 : x - Step 2: Convert to fraction form
235,210.12/351,037.68 = 212,509.76/x - Step 3: Cross multiply
235,210.12x = 351,037.68 × 212,509.76 - Step 4: Simplify right side
235,210.12x = 74,598,933,127.76 - Step 5: Solve for x
x = 74,598,933,127.76/235,210.12 - Step 6: Final answer
x = 317,158.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.