Home / 212,484.04-318,609.40-145,940.92

Finding the Fourth Proportional to 212,484.04, 318,609.40 and 145,940.92

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Solution

The fourth proportional to 212,484.04, 318,609.40 and 145,940.92 is: 218,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,484.04 : 318,609.40 = 145,940.92 : x
  2. Step 2: Convert to fraction form
    212,484.04/318,609.40 = 145,940.92/x
  3. Step 3: Cross multiply
    212,484.04x = 318,609.40 × 145,940.92
  4. Step 4: Simplify right side
    212,484.04x = 46,498,148,956.65
  5. Step 5: Solve for x
    x = 46,498,148,956.65/212,484.04
  6. Step 6: Final answer
    x = 218,831.25

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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.