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Finding the Fourth Proportional to 405,088.72, 559,033.72 and 223,812.34

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Solution

The fourth proportional to 405,088.72, 559,033.72 and 223,812.34 is: 308,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,088.72 : 559,033.72 = 223,812.34 : x
  2. Step 2: Convert to fraction form
    405,088.72/559,033.72 = 223,812.34/x
  3. Step 3: Cross multiply
    405,088.72x = 559,033.72 × 223,812.34
  4. Step 4: Simplify right side
    405,088.72x = 125,118,643,054.99
  5. Step 5: Solve for x
    x = 125,118,643,054.99/405,088.72
  6. Step 6: Final answer
    x = 308,867.26

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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.