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Finding the Fourth Proportional to 224,430.16, 309,825.85 and 139,574.56

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Solution

The fourth proportional to 224,430.16, 309,825.85 and 139,574.56 is: 192,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,430.16 : 309,825.85 = 139,574.56 : x
  2. Step 2: Convert to fraction form
    224,430.16/309,825.85 = 139,574.56/x
  3. Step 3: Cross multiply
    224,430.16x = 309,825.85 × 139,574.56
  4. Step 4: Simplify right side
    224,430.16x = 43,243,804,792.31
  5. Step 5: Solve for x
    x = 43,243,804,792.31/224,430.16
  6. Step 6: Final answer
    x = 192,682.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.