Finding the Fourth Proportional to 430,972.84, 646,060.14 and 220,145.80
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Solution
The fourth proportional to 430,972.84, 646,060.14 and 220,145.80 is: 330,014.82
Step by Step Solution
- Step 1: Write the proportion equation
430,972.84 : 646,060.14 = 220,145.80 : x - Step 2: Convert to fraction form
430,972.84/646,060.14 = 220,145.80/x - Step 3: Cross multiply
430,972.84x = 646,060.14 × 220,145.80 - Step 4: Simplify right side
430,972.84x = 142,227,426,368.41 - Step 5: Solve for x
x = 142,227,426,368.41/430,972.84 - Step 6: Final answer
x = 330,014.82
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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.