Finding the Fourth Proportional to 282,698.04, 390,124.14 and 155,386.68
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Solution
The fourth proportional to 282,698.04, 390,124.14 and 155,386.68 is: 214,434.08
Step by Step Solution
- Step 1: Write the proportion equation
282,698.04 : 390,124.14 = 155,386.68 : x - Step 2: Convert to fraction form
282,698.04/390,124.14 = 155,386.68/x - Step 3: Cross multiply
282,698.04x = 390,124.14 × 155,386.68 - Step 4: Simplify right side
282,698.04x = 60,620,094,902.46 - Step 5: Solve for x
x = 60,620,094,902.46/282,698.04 - Step 6: Final answer
x = 214,434.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.