Home / 219,485.32-302,888.69-122,689.15

Finding the Fourth Proportional to 219,485.32, 302,888.69 and 122,689.15

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Solution

The fourth proportional to 219,485.32, 302,888.69 and 122,689.15 is: 169,310.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,485.32 : 302,888.69 = 122,689.15 : x
  2. Step 2: Convert to fraction form
    219,485.32/302,888.69 = 122,689.15/x
  3. Step 3: Cross multiply
    219,485.32x = 302,888.69 × 122,689.15
  4. Step 4: Simplify right side
    219,485.32x = 37,161,155,307.27
  5. Step 5: Solve for x
    x = 37,161,155,307.27/219,485.32
  6. Step 6: Final answer
    x = 169,310.44

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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.