Finding the Fourth Proportional to 270,249,677.80, 405,374,516.70 and 155,458,421.80
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Solution
The fourth proportional to 270,249,677.80, 405,374,516.70 and 155,458,421.80 is: 233,187,632.70
Step by Step Solution
- Step 1: Write the proportion equation
270,249,677.80 : 405,374,516.70 = 155,458,421.80 : x - Step 2: Convert to fraction form
270,249,677.80/405,374,516.70 = 155,458,421.80/x - Step 3: Cross multiply
270,249,677.80x = 405,374,516.70 × 155,458,421.80 - Step 4: Simplify right side
270,249,677.80x = 63,018,882,604,119,744 - Step 5: Solve for x
x = 63,018,882,604,119,744/270,249,677.80 - Step 6: Final answer
x = 233,187,632.70
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1.5x scale
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.