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Finding the Fourth Proportional to 288,260.80, 432,392.64 and 130,304.32

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Solution

The fourth proportional to 288,260.80, 432,392.64 and 130,304.32 is: 195,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,260.80 : 432,392.64 = 130,304.32 : x
  2. Step 2: Convert to fraction form
    288,260.80/432,392.64 = 130,304.32/x
  3. Step 3: Cross multiply
    288,260.80x = 432,392.64 × 130,304.32
  4. Step 4: Simplify right side
    288,260.80x = 56,342,628,928.20
  5. Step 5: Solve for x
    x = 56,342,628,928.20/288,260.80
  6. Step 6: Final answer
    x = 195,457.13

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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.