Home / 212,079.28-317,426.58-155,904.52

Finding the Fourth Proportional to 212,079.28, 317,426.58 and 155,904.52

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Solution

The fourth proportional to 212,079.28, 317,426.58 and 155,904.52 is: 233,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,079.28 : 317,426.58 = 155,904.52 : x
  2. Step 2: Convert to fraction form
    212,079.28/317,426.58 = 155,904.52/x
  3. Step 3: Cross multiply
    212,079.28x = 317,426.58 × 155,904.52
  4. Step 4: Simplify right side
    212,079.28x = 49,488,238,590.14
  5. Step 5: Solve for x
    x = 49,488,238,590.14/212,079.28
  6. Step 6: Final answer
    x = 233,347.82

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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.