Finding the Fourth Proportional to 430,075.28, 643,709.14 and 316,192.93
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Solution
The fourth proportional to 430,075.28, 643,709.14 and 316,192.93 is: 473,257.33
Step by Step Solution
- Step 1: Write the proportion equation
430,075.28 : 643,709.14 = 316,192.93 : x - Step 2: Convert to fraction form
430,075.28/643,709.14 = 316,192.93/x - Step 3: Cross multiply
430,075.28x = 643,709.14 × 316,192.93 - Step 4: Simplify right side
430,075.28x = 203,536,279,044.38 - Step 5: Solve for x
x = 203,536,279,044.38/430,075.28 - Step 6: Final answer
x = 473,257.33
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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.