Finding the Fourth Proportional to 421,069.68, 631,854.66 and 155,017.08
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Solution
The fourth proportional to 421,069.68, 631,854.66 and 155,017.08 is: 232,617.71
Step by Step Solution
- Step 1: Write the proportion equation
421,069.68 : 631,854.66 = 155,017.08 : x - Step 2: Convert to fraction form
421,069.68/631,854.66 = 155,017.08/x - Step 3: Cross multiply
421,069.68x = 631,854.66 × 155,017.08 - Step 4: Simplify right side
421,069.68x = 97,948,264,377.59 - Step 5: Solve for x
x = 97,948,264,377.59/421,069.68 - Step 6: Final answer
x = 232,617.71
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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.