Finding the Fourth Proportional to 260,027.80, 390,041.70 and 260,027.80
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Solution
The fourth proportional to 260,027.80, 390,041.70 and 260,027.80 is: 390,041.70
Step by Step Solution
- Step 1: Write the proportion equation
260,027.80 : 390,041.70 = 260,027.80 : x - Step 2: Convert to fraction form
260,027.80/390,041.70 = 260,027.80/x - Step 3: Cross multiply
260,027.80x = 390,041.70 × 260,027.80 - Step 4: Simplify right side
260,027.80x = 101,421,685,159.26 - Step 5: Solve for x
x = 101,421,685,159.26/260,027.80 - Step 6: Final answer
x = 390,041.70
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1.5x scale
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.