Finding the Fourth Proportional to 313,280.99, 432,328.15 and 170,041.02
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Solution
The fourth proportional to 313,280.99, 432,328.15 and 170,041.02 is: 234,656.82
Step by Step Solution
- Step 1: Write the proportion equation
313,280.99 : 432,328.15 = 170,041.02 : x - Step 2: Convert to fraction form
313,280.99/432,328.15 = 170,041.02/x - Step 3: Cross multiply
313,280.99x = 432,328.15 × 170,041.02 - Step 4: Simplify right side
313,280.99x = 73,513,519,600.71 - Step 5: Solve for x
x = 73,513,519,600.71/313,280.99 - Step 6: Final answer
x = 234,656.82
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1.5x scale
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.