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Finding the Fourth Proportional to 405,509.51, 559,580.56 and 224,210.57

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Solution

The fourth proportional to 405,509.51, 559,580.56 and 224,210.57 is: 309,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,509.51 : 559,580.56 = 224,210.57 : x
  2. Step 2: Convert to fraction form
    405,509.51/559,580.56 = 224,210.57/x
  3. Step 3: Cross multiply
    405,509.51x = 559,580.56 × 224,210.57
  4. Step 4: Simplify right side
    405,509.51x = 125,463,872,960.09
  5. Step 5: Solve for x
    x = 125,463,872,960.09/405,509.51
  6. Step 6: Final answer
    x = 309,398.10

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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.