Home / 297,289.57-446,002.47-128,838.17

Finding the Fourth Proportional to 297,289.57, 446,002.47 and 128,838.17

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Solution

The fourth proportional to 297,289.57, 446,002.47 and 128,838.17 is: 193,286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,289.57 : 446,002.47 = 128,838.17 : x
  2. Step 2: Convert to fraction form
    297,289.57/446,002.47 = 128,838.17/x
  3. Step 3: Cross multiply
    297,289.57x = 446,002.47 × 128,838.17
  4. Step 4: Simplify right side
    297,289.57x = 57,462,142,050.28
  5. Step 5: Solve for x
    x = 57,462,142,050.28/297,289.57
  6. Step 6: Final answer
    x = 193,286.77

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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.