Home / 442,187.20-663,280.80-146,699.20

Finding the Fourth Proportional to 442,187.20, 663,280.80 and 146,699.20

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Solution

The fourth proportional to 442,187.20, 663,280.80 and 146,699.20 is: 220,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,187.20 : 663,280.80 = 146,699.20 : x
  2. Step 2: Convert to fraction form
    442,187.20/663,280.80 = 146,699.20/x
  3. Step 3: Cross multiply
    442,187.20x = 663,280.80 × 146,699.20
  4. Step 4: Simplify right side
    442,187.20x = 97,302,762,735.36
  5. Step 5: Solve for x
    x = 97,302,762,735.36/442,187.20
  6. Step 6: Final answer
    x = 220,048.80

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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.