Finding the Fourth Proportional to 249,739.98, 344,574.68 and 142,307.70
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Solution
The fourth proportional to 249,739.98, 344,574.68 and 142,307.70 is: 196,346.74
Step by Step Solution
- Step 1: Write the proportion equation
249,739.98 : 344,574.68 = 142,307.70 : x - Step 2: Convert to fraction form
249,739.98/344,574.68 = 142,307.70/x - Step 3: Cross multiply
249,739.98x = 344,574.68 × 142,307.70 - Step 4: Simplify right side
249,739.98x = 49,035,630,189.04 - Step 5: Solve for x
x = 49,035,630,189.04/249,739.98 - Step 6: Final answer
x = 196,346.74
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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.