Finding the Fourth Proportional to 750.98, 1,125.74 and 288.40
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Solution
The fourth proportional to 750.98, 1,125.74 and 288.40 is: 432.32
Step by Step Solution
- Step 1: Write the proportion equation
750.98 : 1,125.74 = 288.40 : x - Step 2: Convert to fraction form
750.98/1,125.74 = 288.40/x - Step 3: Cross multiply
750.98x = 1,125.74 × 288.40 - Step 4: Simplify right side
750.98x = 324,663.42 - Step 5: Solve for x
x = 324,663.42/750.98 - Step 6: Final answer
x = 432.32
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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.