Finding the Fourth Proportional to 402,533.84, 555,509.40 and 221,259.79
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Solution
The fourth proportional to 402,533.84, 555,509.40 and 221,259.79 is: 305,345.49
Step by Step Solution
- Step 1: Write the proportion equation
402,533.84 : 555,509.40 = 221,259.79 : x - Step 2: Convert to fraction form
402,533.84/555,509.40 = 221,259.79/x - Step 3: Cross multiply
402,533.84x = 555,509.40 × 221,259.79 - Step 4: Simplify right side
402,533.84x = 122,911,893,187.03 - Step 5: Solve for x
x = 122,911,893,187.03/402,533.84 - Step 6: Final answer
x = 305,345.49
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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.