Home / 347,209.15-520,722.58-147,426.70

Finding the Fourth Proportional to 347,209.15, 520,722.58 and 147,426.70

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Solution

The fourth proportional to 347,209.15, 520,722.58 and 147,426.70 is: 221,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,209.15 : 520,722.58 = 147,426.70 : x
  2. Step 2: Convert to fraction form
    347,209.15/520,722.58 = 147,426.70/x
  3. Step 3: Cross multiply
    347,209.15x = 520,722.58 × 147,426.70
  4. Step 4: Simplify right side
    347,209.15x = 76,768,411,584.89
  5. Step 5: Solve for x
    x = 76,768,411,584.89/347,209.15
  6. Step 6: Final answer
    x = 221,101.35

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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.