Finding the Fourth Proportional to 628,681.08, 943,022.40 and 155,359.20
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Solution
The fourth proportional to 628,681.08, 943,022.40 and 155,359.20 is: 233,038.99
Step by Step Solution
- Step 1: Write the proportion equation
628,681.08 : 943,022.40 = 155,359.20 : x - Step 2: Convert to fraction form
628,681.08/943,022.40 = 155,359.20/x - Step 3: Cross multiply
628,681.08x = 943,022.40 × 155,359.20 - Step 4: Simplify right side
628,681.08x = 146,507,205,646.08 - Step 5: Solve for x
x = 146,507,205,646.08/628,681.08 - Step 6: Final answer
x = 233,038.99
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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.