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Finding the Fourth Proportional to 348,707.92, 480,300.28 and 267,980.88

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Solution

The fourth proportional to 348,707.92, 480,300.28 and 267,980.88 is: 369,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,707.92 : 480,300.28 = 267,980.88 : x
  2. Step 2: Convert to fraction form
    348,707.92/480,300.28 = 267,980.88/x
  3. Step 3: Cross multiply
    348,707.92x = 480,300.28 × 267,980.88
  4. Step 4: Simplify right side
    348,707.92x = 128,711,291,698.65
  5. Step 5: Solve for x
    x = 128,711,291,698.65/348,707.92
  6. Step 6: Final answer
    x = 369,109.17

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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.