Home / 472,428.81-708,655.50-135,455.85

Finding the Fourth Proportional to 472,428.81, 708,655.50 and 135,455.85

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Solution

The fourth proportional to 472,428.81, 708,655.50 and 135,455.85 is: 203,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,428.81 : 708,655.50 = 135,455.85 : x
  2. Step 2: Convert to fraction form
    472,428.81/708,655.50 = 135,455.85/x
  3. Step 3: Cross multiply
    472,428.81x = 708,655.50 × 135,455.85
  4. Step 4: Simplify right side
    472,428.81x = 95,991,529,566.40
  5. Step 5: Solve for x
    x = 95,991,529,566.40/472,428.81
  6. Step 6: Final answer
    x = 203,187.29

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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.