Finding the Fourth Proportional to 420,313.19, 630,423.07 and 150,430.44
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Solution
The fourth proportional to 420,313.19, 630,423.07 and 150,430.44 is: 225,628.94
Step by Step Solution
- Step 1: Write the proportion equation
420,313.19 : 630,423.07 = 150,430.44 : x - Step 2: Convert to fraction form
420,313.19/630,423.07 = 150,430.44/x - Step 3: Cross multiply
420,313.19x = 630,423.07 × 150,430.44 - Step 4: Simplify right side
420,313.19x = 94,834,819,806.25 - Step 5: Solve for x
x = 94,834,819,806.25/420,313.19 - Step 6: Final answer
x = 225,628.94
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1.5x scale
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.