Finding the Fourth Proportional to 406,140.13, 609,303.62 and 136,304.07
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Solution
The fourth proportional to 406,140.13, 609,303.62 and 136,304.07 is: 204,487.47
Step by Step Solution
- Step 1: Write the proportion equation
406,140.13 : 609,303.62 = 136,304.07 : x - Step 2: Convert to fraction form
406,140.13/609,303.62 = 136,304.07/x - Step 3: Cross multiply
406,140.13x = 609,303.62 × 136,304.07 - Step 4: Simplify right side
406,140.13x = 83,050,565,701.89 - Step 5: Solve for x
x = 83,050,565,701.89/406,140.13 - Step 6: Final answer
x = 204,487.47
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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.