Home / 347,023.80-520,535.70-268,291.80

Finding the Fourth Proportional to 347,023.80, 520,535.70 and 268,291.80

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Solution

The fourth proportional to 347,023.80, 520,535.70 and 268,291.80 is: 402,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,023.80 : 520,535.70 = 268,291.80 : x
  2. Step 2: Convert to fraction form
    347,023.80/520,535.70 = 268,291.80/x
  3. Step 3: Cross multiply
    347,023.80x = 520,535.70 × 268,291.80
  4. Step 4: Simplify right side
    347,023.80x = 139,655,459,917.26
  5. Step 5: Solve for x
    x = 139,655,459,917.26/347,023.80
  6. Step 6: Final answer
    x = 402,437.70

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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.