Finding the Fourth Proportional to 260,554.60, 390,656.70 and 102,701.80
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Solution
The fourth proportional to 260,554.60, 390,656.70 and 102,701.80 is: 153,983.64
Step by Step Solution
- Step 1: Write the proportion equation
260,554.60 : 390,656.70 = 102,701.80 : x - Step 2: Convert to fraction form
260,554.60/390,656.70 = 102,701.80/x - Step 3: Cross multiply
260,554.60x = 390,656.70 × 102,701.80 - Step 4: Simplify right side
260,554.60x = 40,121,146,272.06 - Step 5: Solve for x
x = 40,121,146,272.06/260,554.60 - Step 6: Final answer
x = 153,983.64
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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.