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Finding the Fourth Proportional to 354,281.60, 487,913.28 and 346,540.16

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Solution

The fourth proportional to 354,281.60, 487,913.28 and 346,540.16 is: 477,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,281.60 : 487,913.28 = 346,540.16 : x
  2. Step 2: Convert to fraction form
    354,281.60/487,913.28 = 346,540.16/x
  3. Step 3: Cross multiply
    354,281.60x = 487,913.28 × 346,540.16
  4. Step 4: Simplify right side
    354,281.60x = 169,081,546,117.33
  5. Step 5: Solve for x
    x = 169,081,546,117.33/354,281.60
  6. Step 6: Final answer
    x = 477,251.84

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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.