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Finding the Fourth Proportional to 239,529.70, 359,312.76 and 139,699.82

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Solution

The fourth proportional to 239,529.70, 359,312.76 and 139,699.82 is: 209,560.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,529.70 : 359,312.76 = 139,699.82 : x
  2. Step 2: Convert to fraction form
    239,529.70/359,312.76 = 139,699.82/x
  3. Step 3: Cross multiply
    239,529.70x = 359,312.76 × 139,699.82
  4. Step 4: Simplify right side
    239,529.70x = 50,195,927,895.70
  5. Step 5: Solve for x
    x = 50,195,927,895.70/239,529.70
  6. Step 6: Final answer
    x = 209,560.35

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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.