Finding the Fourth Proportional to 286,669.60, 430,004.40 and 73,437.10
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Solution
The fourth proportional to 286,669.60, 430,004.40 and 73,437.10 is: 110,155.65
Step by Step Solution
- Step 1: Write the proportion equation
286,669.60 : 430,004.40 = 73,437.10 : x - Step 2: Convert to fraction form
286,669.60/430,004.40 = 73,437.10/x - Step 3: Cross multiply
286,669.60x = 430,004.40 × 73,437.10 - Step 4: Simplify right side
286,669.60x = 31,578,276,123.24 - Step 5: Solve for x
x = 31,578,276,123.24/286,669.60 - Step 6: Final answer
x = 110,155.65
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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.