Home / 316,831.41-437,080.79-280,569.82

Finding the Fourth Proportional to 316,831.41, 437,080.79 and 280,569.82

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Solution

The fourth proportional to 316,831.41, 437,080.79 and 280,569.82 is: 387,056.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,831.41 : 437,080.79 = 280,569.82 : x
  2. Step 2: Convert to fraction form
    316,831.41/437,080.79 = 280,569.82/x
  3. Step 3: Cross multiply
    316,831.41x = 437,080.79 × 280,569.82
  4. Step 4: Simplify right side
    316,831.41x = 122,631,678,575.76
  5. Step 5: Solve for x
    x = 122,631,678,575.76/316,831.41
  6. Step 6: Final answer
    x = 387,056.57

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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.