Finding the Fourth Proportional to 429,128.84, 643,693.80 and 148,646.06
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Solution
The fourth proportional to 429,128.84, 643,693.80 and 148,646.06 is: 222,969.28
Step by Step Solution
- Step 1: Write the proportion equation
429,128.84 : 643,693.80 = 148,646.06 : x - Step 2: Convert to fraction form
429,128.84/643,693.80 = 148,646.06/x - Step 3: Cross multiply
429,128.84x = 643,693.80 × 148,646.06 - Step 4: Simplify right side
429,128.84x = 95,682,547,216.43 - Step 5: Solve for x
x = 95,682,547,216.43/429,128.84 - Step 6: Final answer
x = 222,969.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.