Finding the Fourth Proportional to 391,970.10, 587,809.35 and 155,263.80
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Solution
The fourth proportional to 391,970.10, 587,809.35 and 155,263.80 is: 232,837.95
Step by Step Solution
- Step 1: Write the proportion equation
391,970.10 : 587,809.35 = 155,263.80 : x - Step 2: Convert to fraction form
391,970.10/587,809.35 = 155,263.80/x - Step 3: Cross multiply
391,970.10x = 587,809.35 × 155,263.80 - Step 4: Simplify right side
391,970.10x = 91,265,513,356.53 - Step 5: Solve for x
x = 91,265,513,356.53/391,970.10 - Step 6: Final answer
x = 232,837.95
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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.