Home / 223,087.13-307,746.14-142,429.85

Finding the Fourth Proportional to 223,087.13, 307,746.14 and 142,429.85

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Solution

The fourth proportional to 223,087.13, 307,746.14 and 142,429.85 is: 196,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,087.13 : 307,746.14 = 142,429.85 : x
  2. Step 2: Convert to fraction form
    223,087.13/307,746.14 = 142,429.85/x
  3. Step 3: Cross multiply
    223,087.13x = 307,746.14 × 142,429.85
  4. Step 4: Simplify right side
    223,087.13x = 43,832,234,307.40
  5. Step 5: Solve for x
    x = 43,832,234,307.40/223,087.13
  6. Step 6: Final answer
    x = 196,480.34

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1.5x scale

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.