Finding the Fourth Proportional to 286,973.18, 430,174.13 and 137,038.18
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Solution
The fourth proportional to 286,973.18, 430,174.13 and 137,038.18 is: 205,420.88
Step by Step Solution
- Step 1: Write the proportion equation
286,973.18 : 430,174.13 = 137,038.18 : x - Step 2: Convert to fraction form
286,973.18/430,174.13 = 137,038.18/x - Step 3: Cross multiply
286,973.18x = 430,174.13 × 137,038.18 - Step 4: Simplify right side
286,973.18x = 58,950,281,875.29 - Step 5: Solve for x
x = 58,950,281,875.29/286,973.18 - Step 6: Final answer
x = 205,420.88
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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.