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Finding the Fourth Proportional to 405,750.79, 559,931.25 and 224,448.49

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Solution

The fourth proportional to 405,750.79, 559,931.25 and 224,448.49 is: 309,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,750.79 : 559,931.25 = 224,448.49 : x
  2. Step 2: Convert to fraction form
    405,750.79/559,931.25 = 224,448.49/x
  3. Step 3: Cross multiply
    405,750.79x = 559,931.25 × 224,448.49
  4. Step 4: Simplify right side
    405,750.79x = 125,675,723,566.31
  5. Step 5: Solve for x
    x = 125,675,723,566.31/405,750.79
  6. Step 6: Final answer
    x = 309,736.24

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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.