Home / 340,041.90-469,239.03-189,129.18

Finding the Fourth Proportional to 340,041.90, 469,239.03 and 189,129.18

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Solution

The fourth proportional to 340,041.90, 469,239.03 and 189,129.18 is: 260,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,041.90 : 469,239.03 = 189,129.18 : x
  2. Step 2: Convert to fraction form
    340,041.90/469,239.03 = 189,129.18/x
  3. Step 3: Cross multiply
    340,041.90x = 469,239.03 × 189,129.18
  4. Step 4: Simplify right side
    340,041.90x = 88,746,792,967.90
  5. Step 5: Solve for x
    x = 88,746,792,967.90/340,041.90
  6. Step 6: Final answer
    x = 260,987.82

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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.