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Finding the Fourth Proportional to 245,738.20, 368,607.30 and 79,526.20

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Solution

The fourth proportional to 245,738.20, 368,607.30 and 79,526.20 is: 119,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,738.20 : 368,607.30 = 79,526.20 : x
  2. Step 2: Convert to fraction form
    245,738.20/368,607.30 = 79,526.20/x
  3. Step 3: Cross multiply
    245,738.20x = 368,607.30 × 79,526.20
  4. Step 4: Simplify right side
    245,738.20x = 29,313,937,861.26
  5. Step 5: Solve for x
    x = 29,313,937,861.26/245,738.20
  6. Step 6: Final answer
    x = 119,289.30

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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.