Finding the Fourth Proportional to 260,119.17, 390,178.71 and 73,130.67
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Solution
The fourth proportional to 260,119.17, 390,178.71 and 73,130.67 is: 109,695.99
Step by Step Solution
- Step 1: Write the proportion equation
260,119.17 : 390,178.71 = 73,130.67 : x - Step 2: Convert to fraction form
260,119.17/390,178.71 = 73,130.67/x - Step 3: Cross multiply
260,119.17x = 390,178.71 × 73,130.67 - Step 4: Simplify right side
260,119.17x = 28,534,030,482.04 - Step 5: Solve for x
x = 28,534,030,482.04/260,119.17 - Step 6: Final answer
x = 109,695.99
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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.