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Finding the Fourth Proportional to 402,160.41, 554,987.57 and 220,879.71

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Solution

The fourth proportional to 402,160.41, 554,987.57 and 220,879.71 is: 304,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,160.41 : 554,987.57 = 220,879.71 : x
  2. Step 2: Convert to fraction form
    402,160.41/554,987.57 = 220,879.71/x
  3. Step 3: Cross multiply
    402,160.41x = 554,987.57 × 220,879.71
  4. Step 4: Simplify right side
    402,160.41x = 122,585,492,410.81
  5. Step 5: Solve for x
    x = 122,585,492,410.81/402,160.41
  6. Step 6: Final answer
    x = 304,817.40

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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.