Finding the Fourth Proportional to 260,420.24, 390,595.80 and 73,446.80
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Solution
The fourth proportional to 260,420.24, 390,595.80 and 73,446.80 is: 110,160.45
Step by Step Solution
- Step 1: Write the proportion equation
260,420.24 : 390,595.80 = 73,446.80 : x - Step 2: Convert to fraction form
260,420.24/390,595.80 = 73,446.80/x - Step 3: Cross multiply
260,420.24x = 390,595.80 × 73,446.80 - Step 4: Simplify right side
260,420.24x = 28,688,011,603.44 - Step 5: Solve for x
x = 28,688,011,603.44/260,420.24 - Step 6: Final answer
x = 110,160.45
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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.