Finding the Fourth Proportional to 478,134.08, 717,178.06 and 118,303.46
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Solution
The fourth proportional to 478,134.08, 717,178.06 and 118,303.46 is: 177,449.48
Step by Step Solution
- Step 1: Write the proportion equation
478,134.08 : 717,178.06 = 118,303.46 : x - Step 2: Convert to fraction form
478,134.08/717,178.06 = 118,303.46/x - Step 3: Cross multiply
478,134.08x = 717,178.06 × 118,303.46 - Step 4: Simplify right side
478,134.08x = 84,844,645,934.09 - Step 5: Solve for x
x = 84,844,645,934.09/478,134.08 - Step 6: Final answer
x = 177,449.48
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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.