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Finding the Fourth Proportional to 316,913.04, 437,343.44 and 173,670

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Solution

The fourth proportional to 316,913.04, 437,343.44 and 173,670 is: 239,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,913.04 : 437,343.44 = 173,670 : x
  2. Step 2: Convert to fraction form
    316,913.04/437,343.44 = 173,670/x
  3. Step 3: Cross multiply
    316,913.04x = 437,343.44 × 173,670
  4. Step 4: Simplify right side
    316,913.04x = 75,953,434,356.45
  5. Step 5: Solve for x
    x = 75,953,434,356.45/316,913.04
  6. Step 6: Final answer
    x = 239,666.49

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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.