Home / 217,337.40-299,931.84-121,845.66

Finding the Fourth Proportional to 217,337.40, 299,931.84 and 121,845.66

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Solution

The fourth proportional to 217,337.40, 299,931.84 and 121,845.66 is: 168,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,337.40 : 299,931.84 = 121,845.66 : x
  2. Step 2: Convert to fraction form
    217,337.40/299,931.84 = 121,845.66/x
  3. Step 3: Cross multiply
    217,337.40x = 299,931.84 × 121,845.66
  4. Step 4: Simplify right side
    217,337.40x = 36,545,392,999.81
  5. Step 5: Solve for x
    x = 36,545,392,999.81/217,337.40
  6. Step 6: Final answer
    x = 168,150.50

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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.