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Finding the Fourth Proportional to 307,606.79, 424,507.55 and 178,535.58

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Solution

The fourth proportional to 307,606.79, 424,507.55 and 178,535.58 is: 246,385.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,606.79 : 424,507.55 = 178,535.58 : x
  2. Step 2: Convert to fraction form
    307,606.79/424,507.55 = 178,535.58/x
  3. Step 3: Cross multiply
    307,606.79x = 424,507.55 × 178,535.58
  4. Step 4: Simplify right side
    307,606.79x = 75,789,700,760.95
  5. Step 5: Solve for x
    x = 75,789,700,760.95/307,606.79
  6. Step 6: Final answer
    x = 246,385.01

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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.