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Finding the Fourth Proportional to 618,280.80, 927,483.84 and 213,420.24

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Solution

The fourth proportional to 618,280.80, 927,483.84 and 213,420.24 is: 320,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,280.80 : 927,483.84 = 213,420.24 : x
  2. Step 2: Convert to fraction form
    618,280.80/927,483.84 = 213,420.24/x
  3. Step 3: Cross multiply
    618,280.80x = 927,483.84 × 213,420.24
  4. Step 4: Simplify right side
    618,280.80x = 197,943,823,728.92
  5. Step 5: Solve for x
    x = 197,943,823,728.92/618,280.80
  6. Step 6: Final answer
    x = 320,151.98

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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.