Home / 261,331.05-391,503.29-154,395.93

Finding the Fourth Proportional to 261,331.05, 391,503.29 and 154,395.93

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Solution

The fourth proportional to 261,331.05, 391,503.29 and 154,395.93 is: 231,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,331.05 : 391,503.29 = 154,395.93 : x
  2. Step 2: Convert to fraction form
    261,331.05/391,503.29 = 154,395.93/x
  3. Step 3: Cross multiply
    261,331.05x = 391,503.29 × 154,395.93
  4. Step 4: Simplify right side
    261,331.05x = 60,446,513,785.63
  5. Step 5: Solve for x
    x = 60,446,513,785.63/261,331.05
  6. Step 6: Final answer
    x = 231,302.46

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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.