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Finding the Fourth Proportional to 355,366.60, 532,358.70 and 214,707.40

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Solution

The fourth proportional to 355,366.60, 532,358.70 and 214,707.40 is: 321,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,366.60 : 532,358.70 = 214,707.40 : x
  2. Step 2: Convert to fraction form
    355,366.60/532,358.70 = 214,707.40/x
  3. Step 3: Cross multiply
    355,366.60x = 532,358.70 × 214,707.40
  4. Step 4: Simplify right side
    355,366.60x = 114,301,352,344.38
  5. Step 5: Solve for x
    x = 114,301,352,344.38/355,366.60
  6. Step 6: Final answer
    x = 321,643.49

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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.