Finding the Fourth Proportional to 435,831.70, 653,747.55 and 155,247.70
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Solution
The fourth proportional to 435,831.70, 653,747.55 and 155,247.70 is: 232,871.55
Step by Step Solution
- Step 1: Write the proportion equation
435,831.70 : 653,747.55 = 155,247.70 : x - Step 2: Convert to fraction form
435,831.70/653,747.55 = 155,247.70/x - Step 3: Cross multiply
435,831.70x = 653,747.55 × 155,247.70 - Step 4: Simplify right side
435,831.70x = 101,492,803,518.14 - Step 5: Solve for x
x = 101,492,803,518.14/435,831.70 - Step 6: Final answer
x = 232,871.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.