Finding the Fourth Proportional to 402,681.08, 555,688.14 and 221,392.82
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Solution
The fourth proportional to 402,681.08, 555,688.14 and 221,392.82 is: 305,515.63
Step by Step Solution
- Step 1: Write the proportion equation
402,681.08 : 555,688.14 = 221,392.82 : x - Step 2: Convert to fraction form
402,681.08/555,688.14 = 221,392.82/x - Step 3: Cross multiply
402,681.08x = 555,688.14 × 221,392.82 - Step 4: Simplify right side
402,681.08x = 123,025,364,355.16 - Step 5: Solve for x
x = 123,025,364,355.16/402,681.08 - Step 6: Final answer
x = 305,515.63
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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.