Home / 219,199.60-302,465.10-122,391.64

Finding the Fourth Proportional to 219,199.60, 302,465.10 and 122,391.64

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Solution

The fourth proportional to 219,199.60, 302,465.10 and 122,391.64 is: 168,883.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,199.60 : 302,465.10 = 122,391.64 : x
  2. Step 2: Convert to fraction form
    219,199.60/302,465.10 = 122,391.64/x
  3. Step 3: Cross multiply
    219,199.60x = 302,465.10 × 122,391.64
  4. Step 4: Simplify right side
    219,199.60x = 37,019,199,631.76
  5. Step 5: Solve for x
    x = 37,019,199,631.76/219,199.60
  6. Step 6: Final answer
    x = 168,883.52

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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.