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Finding the Fourth Proportional to 286,686.42, 427,610.88 and 248,949.74

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Solution

The fourth proportional to 286,686.42, 427,610.88 and 248,949.74 is: 371,324.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,686.42 : 427,610.88 = 248,949.74 : x
  2. Step 2: Convert to fraction form
    286,686.42/427,610.88 = 248,949.74/x
  3. Step 3: Cross multiply
    286,686.42x = 427,610.88 × 248,949.74
  4. Step 4: Simplify right side
    286,686.42x = 106,453,617,397.17
  5. Step 5: Solve for x
    x = 106,453,617,397.17/286,686.42
  6. Step 6: Final answer
    x = 371,324.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.