Home / 217,742.02-300,479.54-122,248.68

Finding the Fourth Proportional to 217,742.02, 300,479.54 and 122,248.68

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Solution

The fourth proportional to 217,742.02, 300,479.54 and 122,248.68 is: 168,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,742.02 : 300,479.54 = 122,248.68 : x
  2. Step 2: Convert to fraction form
    217,742.02/300,479.54 = 122,248.68/x
  3. Step 3: Cross multiply
    217,742.02x = 300,479.54 × 122,248.68
  4. Step 4: Simplify right side
    217,742.02x = 36,733,227,132.01
  5. Step 5: Solve for x
    x = 36,733,227,132.01/217,742.02
  6. Step 6: Final answer
    x = 168,700.68

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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.