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Finding the Fourth Proportional to 245,499.34, 368,249.02 and 77,045.66

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Solution

The fourth proportional to 245,499.34, 368,249.02 and 77,045.66 is: 115,568.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,499.34 : 368,249.02 = 77,045.66 : x
  2. Step 2: Convert to fraction form
    245,499.34/368,249.02 = 77,045.66/x
  3. Step 3: Cross multiply
    245,499.34x = 368,249.02 × 77,045.66
  4. Step 4: Simplify right side
    245,499.34x = 28,371,988,790.25
  5. Step 5: Solve for x
    x = 28,371,988,790.25/245,499.34
  6. Step 6: Final answer
    x = 115,568.49

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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.