Home / 286,937.20-430,402.24-129,054.16

Finding the Fourth Proportional to 286,937.20, 430,402.24 and 129,054.16

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Solution

The fourth proportional to 286,937.20, 430,402.24 and 129,054.16 is: 193,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,937.20 : 430,402.24 = 129,054.16 : x
  2. Step 2: Convert to fraction form
    286,937.20/430,402.24 = 129,054.16/x
  3. Step 3: Cross multiply
    286,937.20x = 430,402.24 × 129,054.16
  4. Step 4: Simplify right side
    286,937.20x = 55,545,199,545.32
  5. Step 5: Solve for x
    x = 55,545,199,545.32/286,937.20
  6. Step 6: Final answer
    x = 193,579.64

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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.