Finding the Fourth Proportional to 420,545.24, 580,332.16 and 239,240.10
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Solution
The fourth proportional to 420,545.24, 580,332.16 and 239,240.10 is: 330,139.81
Step by Step Solution
- Step 1: Write the proportion equation
420,545.24 : 580,332.16 = 239,240.10 : x - Step 2: Convert to fraction form
420,545.24/580,332.16 = 239,240.10/x - Step 3: Cross multiply
420,545.24x = 580,332.16 × 239,240.10 - Step 4: Simplify right side
420,545.24x = 138,838,723,991.62 - Step 5: Solve for x
x = 138,838,723,991.62/420,545.24 - Step 6: Final answer
x = 330,139.81
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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.