Home / 345,447.16-518,170.73-134,937.47

Finding the Fourth Proportional to 345,447.16, 518,170.73 and 134,937.47

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Solution

The fourth proportional to 345,447.16, 518,170.73 and 134,937.47 is: 202,406.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,447.16 : 518,170.73 = 134,937.47 : x
  2. Step 2: Convert to fraction form
    345,447.16/518,170.73 = 134,937.47/x
  3. Step 3: Cross multiply
    345,447.16x = 518,170.73 × 134,937.47
  4. Step 4: Simplify right side
    345,447.16x = 69,920,648,967.02
  5. Step 5: Solve for x
    x = 69,920,648,967.02/345,447.16
  6. Step 6: Final answer
    x = 202,406.21

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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.