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Finding the Fourth Proportional to 470,242.74, 648,934.83 and 255,382.86

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Solution

The fourth proportional to 470,242.74, 648,934.83 and 255,382.86 is: 352,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,242.74 : 648,934.83 = 255,382.86 : x
  2. Step 2: Convert to fraction form
    470,242.74/648,934.83 = 255,382.86/x
  3. Step 3: Cross multiply
    470,242.74x = 648,934.83 × 255,382.86
  4. Step 4: Simplify right side
    470,242.74x = 165,726,832,839.01
  5. Step 5: Solve for x
    x = 165,726,832,839.01/470,242.74
  6. Step 6: Final answer
    x = 352,428.26

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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.