Finding the Fourth Proportional to 246,681.12, 340,426.14 and 139,261.08
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Solution
The fourth proportional to 246,681.12, 340,426.14 and 139,261.08 is: 192,183.79
Step by Step Solution
- Step 1: Write the proportion equation
246,681.12 : 340,426.14 = 139,261.08 : x - Step 2: Convert to fraction form
246,681.12/340,426.14 = 139,261.08/x - Step 3: Cross multiply
246,681.12x = 340,426.14 × 139,261.08 - Step 4: Simplify right side
246,681.12x = 47,408,111,916.63 - Step 5: Solve for x
x = 47,408,111,916.63/246,681.12 - Step 6: Final answer
x = 192,183.79
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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.