Finding the Fourth Proportional to 280,605.08, 387,228.71 and 153,281.18
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Solution
The fourth proportional to 280,605.08, 387,228.71 and 153,281.18 is: 211,524.59
Step by Step Solution
- Step 1: Write the proportion equation
280,605.08 : 387,228.71 = 153,281.18 : x - Step 2: Convert to fraction form
280,605.08/387,228.71 = 153,281.18/x - Step 3: Cross multiply
280,605.08x = 387,228.71 × 153,281.18 - Step 4: Simplify right side
280,605.08x = 59,354,872,045.74 - Step 5: Solve for x
x = 59,354,872,045.74/280,605.08 - Step 6: Final answer
x = 211,524.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.