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Finding the Fourth Proportional to 459,534.60, 689,301.90 and 223,338.60

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Solution

The fourth proportional to 459,534.60, 689,301.90 and 223,338.60 is: 335,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,534.60 : 689,301.90 = 223,338.60 : x
  2. Step 2: Convert to fraction form
    459,534.60/689,301.90 = 223,338.60/x
  3. Step 3: Cross multiply
    459,534.60x = 689,301.90 × 223,338.60
  4. Step 4: Simplify right side
    459,534.60x = 153,947,721,323.34
  5. Step 5: Solve for x
    x = 153,947,721,323.34/459,534.60
  6. Step 6: Final answer
    x = 335,007.90

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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.