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Finding the Fourth Proportional to 286,451.20, 429,472.41 and 134,563.51

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Solution

The fourth proportional to 286,451.20, 429,472.41 and 134,563.51 is: 201,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,451.20 : 429,472.41 = 134,563.51 : x
  2. Step 2: Convert to fraction form
    286,451.20/429,472.41 = 134,563.51/x
  3. Step 3: Cross multiply
    286,451.20x = 429,472.41 × 134,563.51
  4. Step 4: Simplify right side
    286,451.20x = 57,791,314,937.76
  5. Step 5: Solve for x
    x = 57,791,314,937.76/286,451.20
  6. Step 6: Final answer
    x = 201,749.25

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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.