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Finding the Fourth Proportional to 474,653.04, 655,016.15 and 256,856.91

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Solution

The fourth proportional to 474,653.04, 655,016.15 and 256,856.91 is: 354,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,653.04 : 655,016.15 = 256,856.91 : x
  2. Step 2: Convert to fraction form
    474,653.04/655,016.15 = 256,856.91/x
  3. Step 3: Cross multiply
    474,653.04x = 655,016.15 × 256,856.91
  4. Step 4: Simplify right side
    474,653.04x = 168,245,423,004.81
  5. Step 5: Solve for x
    x = 168,245,423,004.81/474,653.04
  6. Step 6: Final answer
    x = 354,459.80

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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.