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Finding the Fourth Proportional to 356,509.06, 534,831.02 and 143,293.57

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Solution

The fourth proportional to 356,509.06, 534,831.02 and 143,293.57 is: 214,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,509.06 : 534,831.02 = 143,293.57 : x
  2. Step 2: Convert to fraction form
    356,509.06/534,831.02 = 143,293.57/x
  3. Step 3: Cross multiply
    356,509.06x = 534,831.02 × 143,293.57
  4. Step 4: Simplify right side
    356,509.06x = 76,637,846,202.54
  5. Step 5: Solve for x
    x = 76,637,846,202.54/356,509.06
  6. Step 6: Final answer
    x = 214,967.46

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1.5x scale

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.