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Finding the Fourth Proportional to 342,562.30, 513,843.45 and 105,928.90

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Solution

The fourth proportional to 342,562.30, 513,843.45 and 105,928.90 is: 158,893.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,562.30 : 513,843.45 = 105,928.90 : x
  2. Step 2: Convert to fraction form
    342,562.30/513,843.45 = 105,928.90/x
  3. Step 3: Cross multiply
    342,562.30x = 513,843.45 × 105,928.90
  4. Step 4: Simplify right side
    342,562.30x = 54,430,871,430.71
  5. Step 5: Solve for x
    x = 54,430,871,430.71/342,562.30
  6. Step 6: Final answer
    x = 158,893.35

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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.