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Finding the Fourth Proportional to 347,212.52, 520,727.61 and 147,430.07

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Solution

The fourth proportional to 347,212.52, 520,727.61 and 147,430.07 is: 221,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,212.52 : 520,727.61 = 147,430.07 : x
  2. Step 2: Convert to fraction form
    347,212.52/520,727.61 = 147,430.07/x
  3. Step 3: Cross multiply
    347,212.52x = 520,727.61 × 147,430.07
  4. Step 4: Simplify right side
    347,212.52x = 76,770,905,389.59
  5. Step 5: Solve for x
    x = 76,770,905,389.59/347,212.52
  6. Step 6: Final answer
    x = 221,106.39

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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.