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Finding the Fourth Proportional to 474,901.42, 655,365.04 and 257,112.40

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Solution

The fourth proportional to 474,901.42, 655,365.04 and 257,112.40 is: 354,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,901.42 : 655,365.04 = 257,112.40 : x
  2. Step 2: Convert to fraction form
    474,901.42/655,365.04 = 257,112.40/x
  3. Step 3: Cross multiply
    474,901.42x = 655,365.04 × 257,112.40
  4. Step 4: Simplify right side
    474,901.42x = 168,502,478,310.50
  5. Step 5: Solve for x
    x = 168,502,478,310.50/474,901.42
  6. Step 6: Final answer
    x = 354,815.70

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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.