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Finding the Fourth Proportional to 243,535.80, 336,076.78 and 134,639.67

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Solution

The fourth proportional to 243,535.80, 336,076.78 and 134,639.67 is: 185,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,535.80 : 336,076.78 = 134,639.67 : x
  2. Step 2: Convert to fraction form
    243,535.80/336,076.78 = 134,639.67/x
  3. Step 3: Cross multiply
    243,535.80x = 336,076.78 × 134,639.67
  4. Step 4: Simplify right side
    243,535.80x = 45,249,266,753.86
  5. Step 5: Solve for x
    x = 45,249,266,753.86/243,535.80
  6. Step 6: Final answer
    x = 185,801.29

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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.