Finding the Fourth Proportional to 389,828.08, 537,962.76 and 210,980.08
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Solution
The fourth proportional to 389,828.08, 537,962.76 and 210,980.08 is: 291,152.52
Step by Step Solution
- Step 1: Write the proportion equation
389,828.08 : 537,962.76 = 210,980.08 : x - Step 2: Convert to fraction form
389,828.08/537,962.76 = 210,980.08/x - Step 3: Cross multiply
389,828.08x = 537,962.76 × 210,980.08 - Step 4: Simplify right side
389,828.08x = 113,499,426,141.82 - Step 5: Solve for x
x = 113,499,426,141.82/389,828.08 - Step 6: Final answer
x = 291,152.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.