Home / 342,934.77-514,402.21-143,146.17

Finding the Fourth Proportional to 342,934.77, 514,402.21 and 143,146.17

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Solution

The fourth proportional to 342,934.77, 514,402.21 and 143,146.17 is: 214,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,934.77 : 514,402.21 = 143,146.17 : x
  2. Step 2: Convert to fraction form
    342,934.77/514,402.21 = 143,146.17/x
  3. Step 3: Cross multiply
    342,934.77x = 514,402.21 × 143,146.17
  4. Step 4: Simplify right side
    342,934.77x = 73,634,706,201.04
  5. Step 5: Solve for x
    x = 73,634,706,201.04/342,934.77
  6. Step 6: Final answer
    x = 214,719.28

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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.