Home / 470,538.11-649,341.33-255,678.18

Finding the Fourth Proportional to 470,538.11, 649,341.33 and 255,678.18

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Solution

The fourth proportional to 470,538.11, 649,341.33 and 255,678.18 is: 352,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,538.11 : 649,341.33 = 255,678.18 : x
  2. Step 2: Convert to fraction form
    470,538.11/649,341.33 = 255,678.18/x
  3. Step 3: Cross multiply
    470,538.11x = 649,341.33 × 255,678.18
  4. Step 4: Simplify right side
    470,538.11x = 166,022,409,453.18
  5. Step 5: Solve for x
    x = 166,022,409,453.18/470,538.11
  6. Step 6: Final answer
    x = 352,835.21

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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.