Finding the Fourth Proportional to 249,389.06, 344,156.91 and 136,212.08
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Solution
The fourth proportional to 249,389.06, 344,156.91 and 136,212.08 is: 187,972.67
Step by Step Solution
- Step 1: Write the proportion equation
249,389.06 : 344,156.91 = 136,212.08 : x - Step 2: Convert to fraction form
249,389.06/344,156.91 = 136,212.08/x - Step 3: Cross multiply
249,389.06x = 344,156.91 × 136,212.08 - Step 4: Simplify right side
249,389.06x = 46,878,329,077.33 - Step 5: Solve for x
x = 46,878,329,077.33/249,389.06 - Step 6: Final answer
x = 187,972.67
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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.