Finding the Fourth Proportional to 245,158.76, 338,317.08 and 137,726.53
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Solution
The fourth proportional to 245,158.76, 338,317.08 and 137,726.53 is: 190,061.48
Step by Step Solution
- Step 1: Write the proportion equation
245,158.76 : 338,317.08 = 137,726.53 : x - Step 2: Convert to fraction form
245,158.76/338,317.08 = 137,726.53/x - Step 3: Cross multiply
245,158.76x = 338,317.08 × 137,726.53 - Step 4: Simplify right side
245,158.76x = 46,595,237,468.13 - Step 5: Solve for x
x = 46,595,237,468.13/245,158.76 - Step 6: Final answer
x = 190,061.48
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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.