Finding the Fourth Proportional to 292,281.42, 438,162.93 and 142,437.90
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Solution
The fourth proportional to 292,281.42, 438,162.93 and 142,437.90 is: 213,530.53
Step by Step Solution
- Step 1: Write the proportion equation
292,281.42 : 438,162.93 = 142,437.90 : x - Step 2: Convert to fraction form
292,281.42/438,162.93 = 142,437.90/x - Step 3: Cross multiply
292,281.42x = 438,162.93 × 142,437.90 - Step 4: Simplify right side
292,281.42x = 62,411,007,607.05 - Step 5: Solve for x
x = 62,411,007,607.05/292,281.42 - Step 6: Final answer
x = 213,530.53
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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.