Finding the Fourth Proportional to 470,421.12, 707,031.36 and 221,278.08
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Solution
The fourth proportional to 470,421.12, 707,031.36 and 221,278.08 is: 332,575.51
Step by Step Solution
- Step 1: Write the proportion equation
470,421.12 : 707,031.36 = 221,278.08 : x - Step 2: Convert to fraction form
470,421.12/707,031.36 = 221,278.08/x - Step 3: Cross multiply
470,421.12x = 707,031.36 × 221,278.08 - Step 4: Simplify right side
470,421.12x = 156,450,541,840.59 - Step 5: Solve for x
x = 156,450,541,840.59/470,421.12 - Step 6: Final answer
x = 332,575.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.