Home / 369,156.57-509,493.02-223,986.21

Finding the Fourth Proportional to 369,156.57, 509,493.02 and 223,986.21

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Solution

The fourth proportional to 369,156.57, 509,493.02 and 223,986.21 is: 309,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,156.57 : 509,493.02 = 223,986.21 : x
  2. Step 2: Convert to fraction form
    369,156.57/509,493.02 = 223,986.21/x
  3. Step 3: Cross multiply
    369,156.57x = 509,493.02 × 223,986.21
  4. Step 4: Simplify right side
    369,156.57x = 114,119,409,451.32
  5. Step 5: Solve for x
    x = 114,119,409,451.32/369,156.57
  6. Step 6: Final answer
    x = 309,135.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.