Finding the Fourth Proportional to 418,437.84, 577,507.35 and 255,189.07
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Solution
The fourth proportional to 418,437.84, 577,507.35 and 255,189.07 is: 352,199.42
Step by Step Solution
- Step 1: Write the proportion equation
418,437.84 : 577,507.35 = 255,189.07 : x - Step 2: Convert to fraction form
418,437.84/577,507.35 = 255,189.07/x - Step 3: Cross multiply
418,437.84x = 577,507.35 × 255,189.07 - Step 4: Simplify right side
418,437.84x = 147,373,563,564.67 - Step 5: Solve for x
x = 147,373,563,564.67/418,437.84 - Step 6: Final answer
x = 352,199.42
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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.