Home / 316,931.22-475,225.11-139,230.18

Finding the Fourth Proportional to 316,931.22, 475,225.11 and 139,230.18

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Solution

The fourth proportional to 316,931.22, 475,225.11 and 139,230.18 is: 208,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,931.22 : 475,225.11 = 139,230.18 : x
  2. Step 2: Convert to fraction form
    316,931.22/475,225.11 = 139,230.18/x
  3. Step 3: Cross multiply
    316,931.22x = 475,225.11 × 139,230.18
  4. Step 4: Simplify right side
    316,931.22x = 66,165,677,605.82
  5. Step 5: Solve for x
    x = 66,165,677,605.82/316,931.22
  6. Step 6: Final answer
    x = 208,769.83

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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.