Home / 470,123.53-648,752.28-255,258.68

Finding the Fourth Proportional to 470,123.53, 648,752.28 and 255,258.68

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Solution

The fourth proportional to 470,123.53, 648,752.28 and 255,258.68 is: 352,247.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,123.53 : 648,752.28 = 255,258.68 : x
  2. Step 2: Convert to fraction form
    470,123.53/648,752.28 = 255,258.68/x
  3. Step 3: Cross multiply
    470,123.53x = 648,752.28 × 255,258.68
  4. Step 4: Simplify right side
    470,123.53x = 165,599,646,438.81
  5. Step 5: Solve for x
    x = 165,599,646,438.81/470,123.53
  6. Step 6: Final answer
    x = 352,247.09

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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.