Home / 345,920.30-518,880.45-121,534.10

Finding the Fourth Proportional to 345,920.30, 518,880.45 and 121,534.10

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Solution

The fourth proportional to 345,920.30, 518,880.45 and 121,534.10 is: 182,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,920.30 : 518,880.45 = 121,534.10 : x
  2. Step 2: Convert to fraction form
    345,920.30/518,880.45 = 121,534.10/x
  3. Step 3: Cross multiply
    345,920.30x = 518,880.45 × 121,534.10
  4. Step 4: Simplify right side
    345,920.30x = 63,061,668,498.35
  5. Step 5: Solve for x
    x = 63,061,668,498.35/345,920.30
  6. Step 6: Final answer
    x = 182,301.15

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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.