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Finding the Fourth Proportional to 216,574.80, 298,952.36 and 130,536.86

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Solution

The fourth proportional to 216,574.80, 298,952.36 and 130,536.86 is: 180,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,574.80 : 298,952.36 = 130,536.86 : x
  2. Step 2: Convert to fraction form
    216,574.80/298,952.36 = 130,536.86/x
  3. Step 3: Cross multiply
    216,574.80x = 298,952.36 × 130,536.86
  4. Step 4: Simplify right side
    216,574.80x = 39,024,300,706.06
  5. Step 5: Solve for x
    x = 39,024,300,706.06/216,574.80
  6. Step 6: Final answer
    x = 180,188.56

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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.