Home / 217,319.76-299,886.08-120,528.72

Finding the Fourth Proportional to 217,319.76, 299,886.08 and 120,528.72

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Solution

The fourth proportional to 217,319.76, 299,886.08 and 120,528.72 is: 166,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,319.76 : 299,886.08 = 120,528.72 : x
  2. Step 2: Convert to fraction form
    217,319.76/299,886.08 = 120,528.72/x
  3. Step 3: Cross multiply
    217,319.76x = 299,886.08 × 120,528.72
  4. Step 4: Simplify right side
    217,319.76x = 36,144,885,368.22
  5. Step 5: Solve for x
    x = 36,144,885,368.22/217,319.76
  6. Step 6: Final answer
    x = 166,321.21

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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.