Home / 231,071.20-318,707.52-146,106.40

Finding the Fourth Proportional to 231,071.20, 318,707.52 and 146,106.40

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Solution

The fourth proportional to 231,071.20, 318,707.52 and 146,106.40 is: 201,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,071.20 : 318,707.52 = 146,106.40 : x
  2. Step 2: Convert to fraction form
    231,071.20/318,707.52 = 146,106.40/x
  3. Step 3: Cross multiply
    231,071.20x = 318,707.52 × 146,106.40
  4. Step 4: Simplify right side
    231,071.20x = 46,565,208,400.13
  5. Step 5: Solve for x
    x = 46,565,208,400.13/231,071.20
  6. Step 6: Final answer
    x = 201,518.88

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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.