Home / 207,384.55-310,759.92-139,666.19

Finding the Fourth Proportional to 207,384.55, 310,759.92 and 139,666.19

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Solution

The fourth proportional to 207,384.55, 310,759.92 and 139,666.19 is: 209,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,384.55 : 310,759.92 = 139,666.19 : x
  2. Step 2: Convert to fraction form
    207,384.55/310,759.92 = 139,666.19/x
  3. Step 3: Cross multiply
    207,384.55x = 310,759.92 × 139,666.19
  4. Step 4: Simplify right side
    207,384.55x = 43,402,652,477.31
  5. Step 5: Solve for x
    x = 43,402,652,477.31/207,384.55
  6. Step 6: Final answer
    x = 209,285.86

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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.