Home / 221,470.79-331,707.62-155,206.74

Finding the Fourth Proportional to 221,470.79, 331,707.62 and 155,206.74

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Solution

The fourth proportional to 221,470.79, 331,707.62 and 155,206.74 is: 232,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,470.79 : 331,707.62 = 155,206.74 : x
  2. Step 2: Convert to fraction form
    221,470.79/331,707.62 = 155,206.74/x
  3. Step 3: Cross multiply
    221,470.79x = 331,707.62 × 155,206.74
  4. Step 4: Simplify right side
    221,470.79x = 51,483,257,557.33
  5. Step 5: Solve for x
    x = 51,483,257,557.33/221,470.79
  6. Step 6: Final answer
    x = 232,460.72

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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.